diff --git a/.env.example b/.env.example
deleted file mode 100644
index 46fa42a..0000000
--- a/.env.example
+++ /dev/null
@@ -1,7 +0,0 @@
-# Nur beim ersten Start mit leerer Benutzertabelle erforderlich.
-AUTH_BOOTSTRAP_USERNAME=
-AUTH_BOOTSTRAP_PASSWORT=
-AUTH_SESSION_HOURS=12
-AUTH_SESSION_MAX_DAYS=7
-# Hinter HTTPS true, bei direktem HTTP-Zugriff im LAN false.
-COOKIE_SECURE=false
diff --git a/.gitignore b/.gitignore
index b237969..a6e1ff5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,6 @@
 node_modules/
 dist/
 .next/
-.env
-.env.*
-!.env.example
 # Streuprodukt von tsc; drizzle-kit liest drizzle.config.ts.
 /drizzle.config.js
 data/*.db
diff --git a/AGENTS.md b/AGENTS.md
index b01e6b5..93e5108 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -36,16 +36,6 @@ It must support circuits, device rows, project devices, drag-and-drop restructur
 - General Circuit, CircuitDeviceRow, CircuitList and DistributionBoard
   repositories expose only active reads. Runtime writes belong in typed command
   repositories; direct integration fixtures belong under `tests/support`.
-- Authentication: session-cookie login with two fixed roles (`admin`, `user`),
-  no self-signup. `src/server/auth/*` (password hashing, sessions, Express
-  middleware), `src/domain/services/user.service.ts`,
-  `src/db/repositories/user.repository.ts`. Every `/api/*` route requires a
-  signed-in user (`src/server/index.ts`); `/api/users/*` additionally
-  requires `admin`. Frontend gate: `AuthProvider` + `LoginGate`
-  (`src/app/layout.tsx`). Every unsafe API request also requires the explicit
-  `X-Leistungsbilanz-Request: 1` application header, including over plain HTTP.
-  Account settings are available to every signed-in user; user administration
-  remains admin-only. See `docs/authentication.md` for the full picture.
 
 The supported runtime model is Circuit-First. The former Consumer UI, API,
 tables and upgrade tooling are removed; do not reintroduce them.
@@ -742,11 +732,6 @@ for the early-phase power balance by DIN 276 cost group (see
 - second/replacement board feeds, including changeover semantics for SV/SiBe
 - Revit prefill proposals for logical board feeds through the Phase 14 preview
   and explicit-confirmation workflow
-- configurable role/rights matrix instead of the fixed `admin`/`user` roles
-- permanent account lockout (only temporary per-username login throttling
-  exists)
-- email/one-time-link password provisioning, OIDC/Entra login
-- linking user accounts to a personnel/employee master table
 
 Do not implement these while working on an unrelated phase.
 
diff --git a/README.md b/README.md
index f64ae04..b01ae85 100644
--- a/README.md
+++ b/README.md
@@ -7,9 +7,7 @@ Gerätezeilen und wiederverwendbare Projektgeräte fachlich getrennt behandelt.
 Das Projekt befindet sich in aktiver Entwicklung. Für SQLite stehen ein
 Docker-Server-Stack mit gebautem Anwendungscode und ein separater
 Entwicklungsstack bereit. Ein vollständig unterstütztes Produktionsdeployment
-für mehrere gleichzeitig arbeitende Prozesse und ein vollständig unterstütztes
-Produktionsdeployment fehlen weiterhin. Anmeldung und zwei feste Rollen sind
-vorhanden. Revit-CSV-Konfiguration, Vorschau
+und Mehrbenutzerbetrieb fehlen weiterhin. Revit-CSV-Konfiguration, Vorschau
 und bestätigter Erstimport sind implementiert; die Editoroberfläche zur
 Objektzuordnung, Folgeimporte und Rückexport stehen noch aus. Die weitere
 Revit-Arbeit ist zurückgestellt und erfolgt später über den CSV-Export/-Import
@@ -62,8 +60,6 @@ Voraussetzungen:
 ```powershell
 git clone <repository-url>
 Set-Location leistungsbilanz-ts
-$env:AUTH_BOOTSTRAP_USERNAME = "admin"
-$env:AUTH_BOOTSTRAP_PASSWORT = "<eigenes Startpasswort mit mindestens 12 Zeichen>"
 docker compose up --build --detach
 ```
 
@@ -72,15 +68,9 @@ Danach:
 - Frontend: <http://localhost:3001>
 - API-Healthcheck: <http://localhost:3001/health> (über den Next.js-Rewrite)
 
-Beim ersten Start erzeugen diese beiden Variablen genau einen Administrator,
-solange die Benutzertabelle noch leer ist. Danach werden sie ignoriert. Für
-einen dauerhaften Serverbetrieb gehören die Werte in eine nicht versionierte
-`.env` neben `compose.yaml`; Details stehen unter
-[Anmeldung und Benutzerverwaltung](docs/authentication.md).
-
-Die Express-API ist nicht auf dem Host veröffentlicht. Sämtliche fachlichen
-API-Routen verlangen eine gültige Anmeldung; der Zugriff läuft über den
-Rewrite im Web-Dienst.
+Die Express-API ist nicht mehr auf dem Host veröffentlicht. Sie hat keine
+Authentifizierung und ist nur innerhalb des Compose-Netzes erreichbar; der
+Zugriff läuft über den Rewrite im Web-Dienst.
 
 Der API-Container führt ausstehende Migrationen und die Schemaprüfung beim Start
 automatisch aus. Die SQLite-Datei liegt auf dem Host unter
@@ -126,8 +116,6 @@ Voraussetzungen:
 npm ci
 npm run db:migrate
 npm run db:verify:circuit-schema
-$env:AUTH_BOOTSTRAP_USERNAME = "admin"
-$env:AUTH_BOOTSTRAP_PASSWORT = "<eigenes Startpasswort mit mindestens 12 Zeichen>"
 npm run dev:api
 ```
 
@@ -174,7 +162,6 @@ vor der Baseline werden nicht unterstützt.
 - [Gebäudestruktur und Raumflächen](docs/building-structure.md)
 - [Grobe Leistungsbilanz](docs/estimate-balance.md)
 - [Leitungsberechnung](docs/cable-sizing-module.md)
-- [Anmeldung und Benutzerverwaltung](docs/authentication.md)
 - [Entwicklungs- und Contributor-Workflow](docs/development-workflow.md)
 - [Bekannte Einschränkungen](docs/circuit-list-editor-known-limitations.md)
 - [Roadmap](docs/spec/07-implementation-phases-todo.md)
diff --git a/compose.dev.yaml b/compose.dev.yaml
index f49e9e6..b9c64b4 100644
--- a/compose.dev.yaml
+++ b/compose.dev.yaml
@@ -35,12 +35,8 @@ services:
       PORT: "3000"
       CHOKIDAR_USEPOLLING: "true"
       LOG_LEVEL: "${LOG_LEVEL:-debug}"
-      AUTH_BOOTSTRAP_USERNAME: "${AUTH_BOOTSTRAP_USERNAME:-}"
-      AUTH_BOOTSTRAP_PASSWORT: "${AUTH_BOOTSTRAP_PASSWORT:-}"
-      AUTH_SESSION_HOURS: "${AUTH_SESSION_HOURS:-12}"
-      AUTH_SESSION_MAX_DAYS: "${AUTH_SESSION_MAX_DAYS:-7}"
-      COOKIE_SECURE: "${COOKIE_SECURE:-false}"
-    # Nur auf dem Loopback: die API darf nicht aus dem LAN erreichbar sein.
+    # Nur auf dem Loopback: nichts davon ist authentifiziert, die API darf
+    # nicht aus dem LAN erreichbar sein.
     ports:
       - "127.0.0.1:3000:3000"
     # Kein memswap_limit wie im Server-Stack: beim Entwickeln ist Swap als
diff --git a/compose.yaml b/compose.yaml
index 1de9104..3438f90 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -45,16 +45,8 @@ services:
       NODE_ENV: production
       PORT: "3000"
       LOG_LEVEL: "${LOG_LEVEL:-info}"
-      # AUTH_BOOTSTRAP_* legen nur den allerersten Admin an (solange die
-      # users-Tabelle leer ist) und gehoeren in eine lokale, nicht versionierte
-      # .env - siehe docs/authentication.md.
-      AUTH_BOOTSTRAP_USERNAME: "${AUTH_BOOTSTRAP_USERNAME:-}"
-      AUTH_BOOTSTRAP_PASSWORT: "${AUTH_BOOTSTRAP_PASSWORT:-}"
-      AUTH_SESSION_HOURS: "${AUTH_SESSION_HOURS:-12}"
-      AUTH_SESSION_MAX_DAYS: "${AUTH_SESSION_MAX_DAYS:-7}"
-      COOKIE_SECURE: "${COOKIE_SECURE:-false}"
-    # Nicht auf dem Host veroeffentlicht: die API wird ueber den
-    # Next.js-Rewrite im Web-Dienst erreicht.
+    # Nicht auf dem Host veroeffentlicht: die API hat keine Authentifizierung
+    # und wird ueber den Next.js-Rewrite im Web-Dienst erreicht.
     expose:
       - "3000"
     # Harte Obergrenze statt unbegrenztem Wachstum. memswap_limit == mem_limit
diff --git a/docs/README.md b/docs/README.md
index 3569b42..01b5588 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -23,8 +23,6 @@ ausdrücklich getrennt und dürfen nicht als bereits implementiert verstanden we
   bewusst noch nicht implementierte oder begrenzte Funktionen
 - [Leitungsberechnung](cable-sizing-module.md) – optionales Rechenmodul,
   Rechenweg, Datenbasis und Prüfnachweis der Tabellen
-- [Anmeldung und Benutzerverwaltung](authentication.md) – Rollen, Ablauf beim
-  Anlegen eines Zugangs, Sessions, Bootstrap-Admin
 
 ## Entwicklung und Betrieb
 
diff --git a/docs/authentication.md b/docs/authentication.md
deleted file mode 100644
index 32039cf..0000000
--- a/docs/authentication.md
+++ /dev/null
@@ -1,99 +0,0 @@
-# Anmeldung und Benutzerverwaltung
-
-Die Leistungsbilanz verlangt eine Anmeldung. Es gibt kein Self-Signup: jeder
-Zugang wird von einem Administrator über **Config → Benutzer** angelegt.
-
-## Rollen
-
-Es gibt genau zwei Rollen (`src/shared/constants/user-roles.ts`):
-
-- **admin** – wie `user`, zusätzlich Zugriff auf **Config → Benutzer**
-- **user** – volle Nutzung der Leistungsbilanz (Projekte, Stromkreislisten,
-  Grobbilanz, …) und Zugriff auf das eigene Konto, keine Benutzerverwaltung
-
-Es gibt (bewusst, siehe unten) keine konfigurierbare Rechte-Matrix und keine
-Verknüpfung mit einer Mitarbeiter-/Personen-Stammdatentabelle.
-
-## Ablauf beim Anlegen eines Zugangs
-
-1. Ein Administrator öffnet Config → Benutzer und legt einen neuen Zugang mit
-   Anmeldename, Name, Rolle und einem **Startpasswort** an, das er selbst
-   eintippt.
-2. Der Zugang startet mit `mustChangePassword = true`.
-3. Beim ersten Anmelden zeigt die Oberfläche statt der App ein Formular, das
-   ein eigenes Passwort verlangt, bevor es weitergeht.
-4. "Passwort zurücksetzen" (ebenfalls in Config → Benutzer) setzt ein neues
-   Startpasswort und `mustChangePassword` wieder auf `true` – z. B. wenn
-   jemand sein Passwort vergessen hat.
-
-## Technischer Aufbau
-
-- **Datenmodell:** Tabelle `users` (`src/db/schema/users.ts`) –
-  `username`, `passwordHash` (scrypt, `src/server/auth/password.ts`), `name`,
-  `role`, `active`, `mustChangePassword`.
-- **Sessions:** In-Memory-Store (`src/server/auth/sessions.ts`), Cookie
-  `lb_session`, sliding expiry (`AUTH_SESSION_HOURS`, Standard 12h) mit
-  absoluter Obergrenze (`AUTH_SESSION_MAX_DAYS`, Standard 7). Ein
-  Neustart der API beendet alle Sessions – für einen Single-Container-Dienst
-  ein akzeptabler Kompromiss gegenüber einer persistierten Session-Tabelle.
-- **Middleware:** `src/server/auth/auth.middleware.ts` schützt `/api/*`
-  (außer `/api/auth/login`, `/api/auth/status`, `/api/auth/logout`) und
-  erzwingt den Passwortwechsel, solange `mustChangePassword` gesetzt ist.
-  `/api/users/*` verlangt zusätzlich die Rolle `admin`.
-- **Frontend:** `AuthProvider` lädt `/api/auth/me`; `LoginGate`
-  (`src/app/layout.tsx`) zeigt Login- bzw. Passwortformular, solange nicht
-  angemeldet bzw. `mustChangePassword` gesetzt ist, sonst die App.
-  **Konto** ist für jede angemeldete Person erreichbar; **Benutzer** nur für
-  Administratoren.
-
-## Schutzmechanismen
-
-| Angriff | Schutz |
-|---|---|
-| Passwort-Raten (online) | `LoginThrottle`: 5 Fehlversuche je Anmeldename in 15 min → HTTP 429 bis das Fenster abläuft. Schlüssel ist der Name, nicht die IP (alle Anfragen kommen über den Next-Rewrite mit derselben Quell-IP). |
-| Passwort-Raten (offline, DB-Diebstahl) | scrypt (N=16384, r=8, p=1), eigenes Salt je Hash |
-| Nutzernamen ausspähen (Timing) | Unbekannte Namen werden gegen einen festen Dummy-Hash geprüft – immer genau ein scrypt-Lauf; einheitliche Fehlermeldung |
-| CSRF | SameSite=Lax **plus** `requireSameOriginForWrites`: jeder Schreibzugriff braucht `X-Leistungsbilanz-Request: 1`; fremde HTML-Formulare können den Header nicht setzen und ein fremder Fetch scheitert an der notwendigen CORS-Preflight-Anfrage. Ein vorhandener `Sec-Fetch-Site`-Header wird zusätzlich geprüft. |
-| CSRF über reines HTTP | Der eigene Anwendungsheader gilt auch dann, wenn Browser im HTTP-LAN keinen `Sec-Fetch-Site`-Header senden. Skripte und manuelle API-Aufrufe müssen ihn bei `POST`, `PUT`, `PATCH` und `DELETE` ausdrücklich mitsenden. |
-| Session-Fixation | Neue Session-ID bei jedem Login und nach jedem Passwortwechsel |
-| Gestohlenes Cookie | httpOnly; gleitende Laufzeit (`AUTH_SESSION_HOURS`, 12 h) **und** harte Obergrenze (`AUTH_SESSION_MAX_DAYS`, 7 Tage) |
-| Kompromittiertes Konto | Passwort-Reset und Deaktivieren beenden sofort alle Sessions des Kontos; Passwortwechsel beendet alle anderen |
-| Aussperren | Der letzte aktive Admin kann weder herabgestuft noch deaktiviert werden; Prüfung und Änderung laufen atomar in einer SQLite-Transaktion. Der eigene Zugang ist in der Liste gesperrt. |
-| Rechteausweitung / Mass Assignment | Rolle kommt aus der DB, nie aus der Anfrage; zod-Schemas mit `.strict()` |
-| DoS über riesige Passwörter | Längengrenzen (Name 100, Passwort 200 Zeichen) vor scrypt |
-| Look-alike-Namen | Anmeldename nur `a-z 0-9 . _ @ -`, klein geschrieben |
-| Clickjacking | `X-Frame-Options: SAMEORIGIN`, `frame-ancestors 'self'` (next.config.mjs) |
-| Speicherwachstum | Max. 20 Sessions je Nutzer, periodisches Aufräumen abgelaufener Sessions, Throttle-Tabelle begrenzt |
-
-**Nicht durch Code lösbar:** Ohne TLS gehen Passwort und Session-Cookie im
-Klartext durchs Netz. Für Zugriff außerhalb des LANs HTTPS über einen
-Reverse-Proxy vorschalten und `COOKIE_SECURE=true` setzen.
-
-## Bootstrap-Admin
-
-`AUTH_BOOTSTRAP_USERNAME` / `AUTH_BOOTSTRAP_PASSWORT` (Env-Variablen, siehe
-`compose.yaml`) legen beim ersten Start einen Admin an – **nur falls die
-`users`-Tabelle noch komplett leer ist**. Danach werden diese Variablen
-ignoriert; jeder weitere Zugang entsteht über Config → Benutzer. Die Werte
-gehören in eine lokale, nicht versionierte `.env` auf dem Deploy-Host, nicht
-in `compose.yaml` selbst.
-
-```dotenv
-AUTH_BOOTSTRAP_USERNAME=admin
-AUTH_BOOTSTRAP_PASSWORT=<eigenes Startpasswort mit mindestens 12 Zeichen>
-AUTH_SESSION_HOURS=12
-AUTH_SESSION_MAX_DAYS=7
-COOKIE_SECURE=false
-```
-
-Bei Zugriff über HTTPS muss `COOKIE_SECURE=true` gesetzt werden. Bei direktem
-HTTP-Zugriff im LAN bleibt es `false`, da der Browser das Session-Cookie sonst
-nicht speichert.
-
-## Bewusst nicht umgesetzt (Stand jetzt)
-
-- Konfigurierbare Rechte-Matrix statt fixer `admin`/`user`-Rollen
-- Dauerhafte Konten-Sperre nach Fehlversuchen (es gibt nur die zeitlich
-  begrenzte Drosselung, siehe oben)
-- E-Mail-/Einmal-Link-Passwortvergabe, OIDC/Entra-Anmeldung
-- Verknüpfung von Zugängen mit einer Mitarbeiter-Stammdatentabelle
diff --git a/docs/current-architecture.md b/docs/current-architecture.md
index 20c7ccd..71b7feb 100644
--- a/docs/current-architecture.md
+++ b/docs/current-architecture.md
@@ -33,15 +33,6 @@ mit Hot Reload. Das Frontend leitet `/api/*` über `API_INTERNAL_URL` an die API
 weiter; beim gebauten Stand wird das Ziel zur Build-Zeit festgelegt. Die
 Datenbank liegt über einen Host-Mount außerhalb des Containers.
 
-Vor allen fachlichen `/api/*`-Routen liegt die Cookie-basierte Anmeldung aus
-`src/server/auth`. Nur Login, Status und Logout sind ohne Session erreichbar.
-Schreibzugriffe verlangen zusätzlich den Anwendungsheader
-`X-Leistungsbilanz-Request: 1`, damit der Schutz auch beim HTTP-Zugriff im LAN
-ohne Fetch-Metadata-Header greift. `/api/users/*` ist Administratoren
-vorbehalten. Konten sind globale Betriebsdaten und gehören nicht zu
-Projektkommandos, Snapshots oder Projekttransfers. Sessions liegen im Speicher
-des einzelnen API-Prozesses und enden bei dessen Neustart.
-
 Neue IDs für Stromkreise, Gerätezeilen, Gruppen und Verteilerkomponenten erzeugt
 der Editor über `src/frontend/utils/client-id.ts` (`createClientId`). Die
 Hilfsfunktion nutzt `crypto.randomUUID()`, sofern verfügbar, andernfalls
@@ -66,11 +57,6 @@ vor dem Command und bleiben über Undo/Redo unverändert.
 - `src/frontend/components/circuit-grid-*.ts` – reine Grid-Projektion,
   Zellbesitz, Einfügen und Sicherheitsregeln
 - `src/frontend/utils/api.ts` – typisierte Frontend-API-Aufrufe
-- `src/frontend/components/AuthProvider.tsx` und `LoginGate.tsx` – Anmeldung
-  und erzwungener Wechsel eines Startpassworts
-- `src/server/auth/` – Passwort-Hashing, Sessions und Zugriffsschutz
-- `src/domain/services/user.service.ts` und `src/domain/ports/user.store.ts` –
-  kontobezogene Regeln und schmale Persistenzgrenze
 - `src/server/index.ts` und `src/server/routes/` – API-Komposition
 - `src/domain/services/` – fachliche Command- und Synchronisierungsregeln
 - `src/server/composition/` – Verdrahtung fachlicher Services mit konkreten
diff --git a/docs/deployment.md b/docs/deployment.md
index 89c99a3..0b5baba 100644
--- a/docs/deployment.md
+++ b/docs/deployment.md
@@ -16,10 +16,10 @@ und macOS keine inotify-Events durchreichen; das kostet dauerhaft CPU, auch
 ohne Benutzeraktivität. Dieser Stack gehört deshalb nur auf einen
 Entwicklungsrechner.
 
-Beide Stacks enthalten Anmeldung mit festen Rollen, aber weder TLS, einen
-vorgeschalteten Reverse Proxy noch ein zentral betriebenes Datenbanksystem.
-Passwörter und Session-Cookies werden bei reinem HTTP unverschlüsselt
-übertragen. Der Stack darf deshalb nicht öffentlich erreichbar gemacht werden.
+Beide Stacks enthalten weder TLS, Authentifizierung, einen vorgeschalteten
+Reverse Proxy noch ein zentral betriebenes Datenbanksystem. Die oben genannten
+Container-Schutzmaßnahmen ersetzen diese Funktionen nicht. Der Stack darf
+deshalb nicht öffentlich erreichbar gemacht werden.
 
 ## Topologie
 
@@ -29,10 +29,9 @@ Passwörter und Session-Cookies werden bei reinem HTTP unverschlüsselt
 | Express API | 3000 | nicht veröffentlicht (Server) / `127.0.0.1:3000` (Dev) | `GET /health` | `./data:/app/data` |
 | SQLite | Datei | – | Integritäts-/FK-Prüfung via Backup und Skript | `data/leistungsbilanz.db` |
 
-Die Express-API wird im Server-Stack nicht auf dem Host veröffentlicht
-(`expose` statt `ports`). Alle fachlichen API-Routen verlangen eine aktive
-Session; Schreibzugriffe zusätzlich den Anwendungsheader
-`X-Leistungsbilanz-Request: 1`. Erreichbar ist die API nur aus dem
+Die Express-API wird im Server-Stack nicht mehr auf dem Host veröffentlicht
+(`expose` statt `ports`). Sie hat keine Authentifizierung; jeder, der sie
+erreicht, kann jedes Projekt lesen und ändern. Erreichbar ist sie nur aus dem
 Compose-Netz, praktisch also über den Next.js-Rewrite. Im Entwicklungs-Stack
 hängen beide Ports am Loopback und sind nicht aus dem LAN erreichbar.
 
@@ -73,26 +72,6 @@ Verwendete Umgebungsvariablen:
   JSON-Loggers (`error`, `warn`, `info`, `verbose`, `debug`), Standard `info`.
   Setzbar über eine `.env`-Datei neben `compose.yaml` oder
   `LOG_LEVEL=verbose docker compose up`.
-- `AUTH_BOOTSTRAP_USERNAME` und `AUTH_BOOTSTRAP_PASSWORT` – erzeugen nur bei
-  leerer Benutzertabelle den ersten Administrator; das Startpasswort hat
-  mindestens 12 Zeichen.
-- `AUTH_SESSION_HOURS` – Inaktivitätsgrenze einer Session, Standard 12 Stunden.
-- `AUTH_SESSION_MAX_DAYS` – absolute Session-Laufzeit, Standard 7 Tage.
-- `COOKIE_SECURE` – hinter HTTPS `true`; beim direkten HTTP-Zugriff im LAN
-  `false`, da Browser das Cookie sonst nicht speichern.
-
-Vor dem ersten Start müssen mindestens die Bootstrap-Werte in einer lokalen,
-nicht versionierten `.env` neben `compose.yaml` gesetzt werden:
-
-```dotenv
-AUTH_BOOTSTRAP_USERNAME=admin
-AUTH_BOOTSTRAP_PASSWORT=<eigenes Startpasswort mit mindestens 12 Zeichen>
-```
-
-Nach dem ersten erfolgreichen Start werden diese Werte ignoriert, solange
-mindestens ein Benutzer existiert. Weitere Zugänge legt ein Administrator in
-**Config → Benutzer** an. Details stehen in
-[Anmeldung und Benutzerverwaltung](authentication.md).
 
 Beim API-Start laufen zuerst die Migrationen und die Schemaprüfung
 (`scripts/run-migrations.js` und `scripts/db-verify-circuit-schema.js`, im
@@ -158,8 +137,7 @@ bleibt `sh` der Vordergrundprozess, und `SIGTERM` erreicht Node nie.
 Vor einer produktiven Installation werden mindestens benötigt:
 
 - TLS-Termination und Reverse Proxy
-- zentraler Identitätsanbieter oder eine feinere Rechte-Matrix, falls die zwei
-  festen Rollen später nicht ausreichen
+- Authentifizierung, Autorisierung und Benutzer-/Rollenmodell
 - definierte Secrets- und Konfigurationsverwaltung
 - persistenter, gesicherter Datenbankbetrieb
 - kontrollierter einmaliger Migrationsschritt vor dem API-Rollout
diff --git a/next.config.mjs b/next.config.mjs
index a6cb01e..e0610b9 100644
--- a/next.config.mjs
+++ b/next.config.mjs
@@ -11,22 +11,6 @@ const nextConfig = {
   typescript: {
     tsconfigPath: "./tsconfig.next.json",
   },
-  poweredByHeader: false,
-  // Clickjacking: the Config pages hold admin actions, so no foreign page
-  // may frame the app. Same-origin framing stays allowed.
-  async headers() {
-    return [
-      {
-        source: "/:path*",
-        headers: [
-          { key: "X-Frame-Options", value: "SAMEORIGIN" },
-          { key: "Content-Security-Policy", value: "frame-ancestors 'self'" },
-          { key: "X-Content-Type-Options", value: "nosniff" },
-          { key: "Referrer-Policy", value: "same-origin" },
-        ],
-      },
-    ];
-  },
   async rewrites() {
     return [
       {
diff --git a/src/app/config/benutzer/page.tsx b/src/app/config/benutzer/page.tsx
deleted file mode 100644
index 134890d..0000000
--- a/src/app/config/benutzer/page.tsx
+++ /dev/null
@@ -1,325 +0,0 @@
-"use client";
-
-import { useCallback, useEffect, useState } from "react";
-import { userApi, type UserDto, type UserRole } from "../../../frontend/utils/auth-api";
-import { useAuth } from "../../../frontend/components/AuthProvider";
-import { USER_ROLES, USER_ROLE_LABEL } from "../../../shared/constants/user-roles";
-
-const zeitpunkt = new Intl.DateTimeFormat("de-DE", {
-  dateStyle: "short",
-  timeStyle: "short",
-});
-
-export default function BenutzerPage() {
-  const { user: currentUser } = useAuth();
-  const [users, setUsers] = useState<UserDto[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
-  const [busyUserId, setBusyUserId] = useState<string | null>(null);
-  const [resetPasswordFor, setResetPasswordFor] = useState<UserDto | null>(null);
-
-  const load = useCallback(async () => {
-    setLoading(true);
-    try {
-      const rows = await userApi.list();
-      setUsers(rows);
-      setError(null);
-    } catch (err) {
-      setError(err instanceof Error ? err.message : "Benutzer konnten nicht geladen werden.");
-    } finally {
-      setLoading(false);
-    }
-  }, []);
-
-  useEffect(() => {
-    void load();
-  }, [load]);
-
-  async function withBusy(userId: string, action: () => Promise<void>) {
-    setBusyUserId(userId);
-    setError(null);
-    try {
-      await action();
-    } catch (err) {
-      setError(err instanceof Error ? err.message : "Aktion fehlgeschlagen.");
-    } finally {
-      setBusyUserId(null);
-    }
-  }
-
-  async function changeRole(item: UserDto, role: UserRole) {
-    await withBusy(item.id, async () => {
-      const updated = await userApi.update(item.id, { role });
-      setUsers((list) => list.map((row) => (row.id === updated.id ? updated : row)));
-    });
-  }
-
-  async function toggleActive(item: UserDto) {
-    await withBusy(item.id, async () => {
-      const updated = await userApi.update(item.id, { active: !item.active });
-      setUsers((list) => list.map((row) => (row.id === updated.id ? updated : row)));
-    });
-  }
-
-  return (
-    <div className="card" style={{ padding: "1.5rem" }}>
-      <div className="page-header" style={{ marginTop: 0 }}>
-        <h2 className="h5" style={{ margin: 0 }}>
-          Benutzer
-        </h2>
-      </div>
-      <p className="text-body-secondary" style={{ marginBottom: "1rem" }}>
-        Es gibt kein Self-Signup: Jeder Zugang wird hier bewusst von einem
-        Administrator angelegt. Das Startpasswort wird direkt eingetragen; die
-        Person muss es beim ersten Anmelden durch ein eigenes ersetzen.
-      </p>
-
-      <NeuerBenutzerFormular
-        onCreated={(created) => {
-          setUsers((list) => [...list, created]);
-        }}
-      />
-
-      {error && <p className="text-danger">{error}</p>}
-      {loading && <p>Lädt…</p>}
-
-      {!loading && users.length > 0 && (
-        <table className="table" style={{ marginTop: "1.5rem" }}>
-          <thead>
-            <tr>
-              <th>Name</th>
-              <th>Anmeldename</th>
-              <th>Rolle</th>
-              <th>Aktiv</th>
-              <th>Status</th>
-              <th>Angelegt</th>
-              <th>Aktionen</th>
-            </tr>
-          </thead>
-          <tbody>
-            {users.map((item) => {
-              const isSelf = item.id === currentUser?.id;
-              const busy = busyUserId === item.id;
-              return (
-                <tr key={item.id}>
-                  <td>{item.name}</td>
-                  <td>{item.username}</td>
-                  <td>
-                    <select
-                      className="form-select form-select-sm"
-                      value={item.role}
-                      disabled={busy || isSelf}
-                      title={isSelf ? "Der eigene Zugang kann hier nicht geändert werden." : undefined}
-                      onChange={(event) => void changeRole(item, event.target.value as UserRole)}
-                    >
-                      {USER_ROLES.map((role) => (
-                        <option key={role} value={role}>
-                          {USER_ROLE_LABEL[role]}
-                        </option>
-                      ))}
-                    </select>
-                  </td>
-                  <td>
-                    <input
-                      type="checkbox"
-                      checked={item.active}
-                      disabled={busy || isSelf}
-                      title={isSelf ? "Der eigene Zugang kann hier nicht geändert werden." : undefined}
-                      onChange={() => void toggleActive(item)}
-                    />
-                  </td>
-                  <td>{item.mustChangePassword ? "Muss Passwort setzen" : "In Ordnung"}</td>
-                  <td>{zeitpunkt.format(new Date(item.createdAt))}</td>
-                  <td>
-                    <button
-                      type="button"
-                      className="btn btn-outline-primary btn-sm"
-                      disabled={busy}
-                      onClick={() => setResetPasswordFor(item)}
-                    >
-                      Passwort zurücksetzen
-                    </button>
-                  </td>
-                </tr>
-              );
-            })}
-          </tbody>
-        </table>
-      )}
-
-      {!loading && users.length === 0 && <p>Noch keine Benutzer angelegt.</p>}
-
-      {resetPasswordFor && (
-        <PasswortZuruecksetzenDialog
-          item={resetPasswordFor}
-          onClose={() => setResetPasswordFor(null)}
-          onDone={(updated) => {
-            setUsers((list) => list.map((row) => (row.id === updated.id ? updated : row)));
-            setResetPasswordFor(null);
-          }}
-        />
-      )}
-    </div>
-  );
-}
-
-function NeuerBenutzerFormular({ onCreated }: { onCreated: (created: UserDto) => void }) {
-  const [username, setUsername] = useState("");
-  const [name, setName] = useState("");
-  const [role, setRole] = useState<UserRole>("user");
-  const [initialPassword, setInitialPassword] = useState("");
-  const [error, setError] = useState<string | null>(null);
-  const [submitting, setSubmitting] = useState(false);
-
-  async function handleSubmit(event: React.FormEvent) {
-    event.preventDefault();
-    setSubmitting(true);
-    setError(null);
-    try {
-      const created = await userApi.create({ username, name, role, initialPassword });
-      onCreated(created);
-      setUsername("");
-      setName("");
-      setRole("user");
-      setInitialPassword("");
-    } catch (err) {
-      setError(err instanceof Error ? err.message : "Benutzer konnte nicht angelegt werden.");
-    } finally {
-      setSubmitting(false);
-    }
-  }
-
-  return (
-    <form
-      onSubmit={handleSubmit}
-      className="row g-2 align-items-end"
-      style={{ borderBottom: "1px solid rgba(0,0,0,0.1)", paddingBottom: "1rem" }}
-    >
-      <div className="col-sm-3">
-        <label className="form-label" htmlFor="new-user-username">
-          Anmeldename
-        </label>
-        <input
-          id="new-user-username"
-          className="form-control form-control-sm"
-          value={username}
-          onChange={(event) => setUsername(event.target.value)}
-          required
-        />
-      </div>
-      <div className="col-sm-3">
-        <label className="form-label" htmlFor="new-user-name">
-          Name
-        </label>
-        <input
-          id="new-user-name"
-          className="form-control form-control-sm"
-          value={name}
-          onChange={(event) => setName(event.target.value)}
-          required
-        />
-      </div>
-      <div className="col-sm-2">
-        <label className="form-label" htmlFor="new-user-role">
-          Rolle
-        </label>
-        <select
-          id="new-user-role"
-          className="form-select form-select-sm"
-          value={role}
-          onChange={(event) => setRole(event.target.value as UserRole)}
-        >
-          {USER_ROLES.map((r) => (
-            <option key={r} value={r}>
-              {USER_ROLE_LABEL[r]}
-            </option>
-          ))}
-        </select>
-      </div>
-      <div className="col-sm-3">
-        <label className="form-label" htmlFor="new-user-password">
-          Startpasswort
-        </label>
-        <input
-          id="new-user-password"
-          type="text"
-          className="form-control form-control-sm"
-          value={initialPassword}
-          onChange={(event) => setInitialPassword(event.target.value)}
-          minLength={8}
-          required
-        />
-      </div>
-      <div className="col-sm-1">
-        <button type="submit" className="btn btn-primary btn-sm w-100" disabled={submitting}>
-          {submitting ? "…" : "Anlegen"}
-        </button>
-      </div>
-      {error && (
-        <div className="col-12">
-          <p className="text-danger mb-0">{error}</p>
-        </div>
-      )}
-    </form>
-  );
-}
-
-function PasswortZuruecksetzenDialog({
-  item,
-  onClose,
-  onDone,
-}: {
-  item: UserDto;
-  onClose: () => void;
-  onDone: (updated: UserDto) => void;
-}) {
-  const [newPassword, setNewPassword] = useState("");
-  const [error, setError] = useState<string | null>(null);
-  const [submitting, setSubmitting] = useState(false);
-
-  async function handleSubmit(event: React.FormEvent) {
-    event.preventDefault();
-    setSubmitting(true);
-    setError(null);
-    try {
-      const updated = await userApi.resetPassword(item.id, newPassword);
-      onDone(updated);
-    } catch (err) {
-      setError(err instanceof Error ? err.message : "Passwort konnte nicht zurückgesetzt werden.");
-    } finally {
-      setSubmitting(false);
-    }
-  }
-
-  return (
-    <div className="modal-backdrop-inline">
-      <form className="card" style={{ maxWidth: 360, padding: "1.5rem" }} onSubmit={handleSubmit}>
-        <h3 className="h6">Passwort zurücksetzen für {item.name}</h3>
-        <div className="mb-3">
-          <label className="form-label" htmlFor="reset-password">
-            Neues Startpasswort
-          </label>
-          <input
-            id="reset-password"
-            type="text"
-            className="form-control"
-            value={newPassword}
-            onChange={(event) => setNewPassword(event.target.value)}
-            minLength={8}
-            autoFocus
-            required
-          />
-        </div>
-        {error && <p className="text-danger">{error}</p>}
-        <div className="d-flex gap-2">
-          <button type="submit" className="btn btn-primary" disabled={submitting}>
-            {submitting ? "Speichert…" : "Zurücksetzen"}
-          </button>
-          <button type="button" className="btn btn-outline-secondary" onClick={onClose}>
-            Abbrechen
-          </button>
-        </div>
-      </form>
-    </div>
-  );
-}
diff --git a/src/app/config/konto/page.tsx b/src/app/config/konto/page.tsx
deleted file mode 100644
index 2b58ee7..0000000
--- a/src/app/config/konto/page.tsx
+++ /dev/null
@@ -1,103 +0,0 @@
-"use client";
-
-import { useState } from "react";
-import { authApi } from "../../../frontend/utils/auth-api";
-import { useAuth } from "../../../frontend/components/AuthProvider";
-import { USER_ROLE_LABEL } from "../../../shared/constants/user-roles";
-
-export default function KontoPage() {
-  const { user } = useAuth();
-  const [currentPassword, setCurrentPassword] = useState("");
-  const [newPassword, setNewPassword] = useState("");
-  const [newPasswordRepeat, setNewPasswordRepeat] = useState("");
-  const [error, setError] = useState<string | null>(null);
-  const [success, setSuccess] = useState(false);
-  const [submitting, setSubmitting] = useState(false);
-
-  async function handleSubmit(event: React.FormEvent) {
-    event.preventDefault();
-    if (newPassword !== newPasswordRepeat) {
-      setError("Die beiden neuen Passwörter stimmen nicht überein.");
-      return;
-    }
-    setSubmitting(true);
-    setError(null);
-    setSuccess(false);
-    try {
-      await authApi.changePassword(currentPassword, newPassword);
-      setCurrentPassword("");
-      setNewPassword("");
-      setNewPasswordRepeat("");
-      setSuccess(true);
-    } catch (err) {
-      setError(err instanceof Error ? err.message : "Passwort konnte nicht geändert werden.");
-    } finally {
-      setSubmitting(false);
-    }
-  }
-
-  return (
-    <div className="card" style={{ maxWidth: 480, padding: "1.5rem" }}>
-      <h2 className="h5">Konto</h2>
-      {user && (
-        <p className="text-body-secondary">
-          Angemeldet als <strong>{user.name}</strong> ({user.username}) ·{" "}
-          {USER_ROLE_LABEL[user.role]}
-        </p>
-      )}
-
-      <h3 className="h6 mt-4">Passwort ändern</h3>
-      <form onSubmit={handleSubmit}>
-        <div className="mb-3">
-          <label className="form-label" htmlFor="konto-current-password">
-            Aktuelles Passwort
-          </label>
-          <input
-            id="konto-current-password"
-            type="password"
-            className="form-control"
-            value={currentPassword}
-            onChange={(event) => setCurrentPassword(event.target.value)}
-            autoComplete="current-password"
-            required
-          />
-        </div>
-        <div className="mb-3">
-          <label className="form-label" htmlFor="konto-new-password">
-            Neues Passwort
-          </label>
-          <input
-            id="konto-new-password"
-            type="password"
-            className="form-control"
-            value={newPassword}
-            onChange={(event) => setNewPassword(event.target.value)}
-            autoComplete="new-password"
-            minLength={8}
-            required
-          />
-        </div>
-        <div className="mb-3">
-          <label className="form-label" htmlFor="konto-new-password-repeat">
-            Neues Passwort wiederholen
-          </label>
-          <input
-            id="konto-new-password-repeat"
-            type="password"
-            className="form-control"
-            value={newPasswordRepeat}
-            onChange={(event) => setNewPasswordRepeat(event.target.value)}
-            autoComplete="new-password"
-            minLength={8}
-            required
-          />
-        </div>
-        {error && <p className="text-danger">{error}</p>}
-        {success && <p className="text-success">Passwort wurde geändert.</p>}
-        <button type="submit" className="btn btn-primary" disabled={submitting}>
-          {submitting ? "Speichert…" : "Passwort ändern"}
-        </button>
-      </form>
-    </div>
-  );
-}
diff --git a/src/app/config/layout.tsx b/src/app/config/layout.tsx
deleted file mode 100644
index 72d9b6d..0000000
--- a/src/app/config/layout.tsx
+++ /dev/null
@@ -1,52 +0,0 @@
-"use client";
-
-import Link from "next/link";
-import { usePathname, useRouter } from "next/navigation";
-import { useEffect } from "react";
-import { useAuth } from "../../frontend/components/AuthProvider";
-import {
-  getConfigRedirect,
-  getConfigTabs,
-} from "../../frontend/utils/config-access";
-
-export default function ConfigLayout({ children }: { children: React.ReactNode }) {
-  const pathname = usePathname();
-  const router = useRouter();
-  const { status, isAdmin } = useAuth();
-  const tabs = getConfigTabs(isAdmin);
-  const redirectTarget = getConfigRedirect(pathname, isAdmin);
-
-  useEffect(() => {
-    if (status !== "signed-in") return;
-    if (redirectTarget) router.replace(redirectTarget);
-  }, [status, redirectTarget, router]);
-
-  if (
-    status !== "signed-in" ||
-    redirectTarget !== null
-  ) {
-    return null;
-  }
-
-  return (
-    <div className="container-fluid py-4">
-      <div className="page-header">
-        <h1>Config</h1>
-      </div>
-
-      <nav className="config-tabs">
-        {tabs.map((tab) => (
-          <Link
-            key={tab.href}
-            href={tab.href}
-            className={pathname?.startsWith(tab.href) ? "config-tab active" : "config-tab"}
-          >
-            {tab.label}
-          </Link>
-        ))}
-      </nav>
-
-      {children}
-    </div>
-  );
-}
diff --git a/src/app/config/page.tsx b/src/app/config/page.tsx
deleted file mode 100644
index 3c9d8fd..0000000
--- a/src/app/config/page.tsx
+++ /dev/null
@@ -1,3 +0,0 @@
-export default function ConfigPage() {
-  return null;
-}
diff --git a/src/app/globals.css b/src/app/globals.css
index 8b55c75..88df3e9 100644
--- a/src/app/globals.css
+++ b/src/app/globals.css
@@ -323,24 +323,23 @@ a {
 }
 
 .sidebar-footer {
-  padding-top: 12px;
+  padding: 12px;
   border-top: 1px solid rgba(255, 255, 255, 0.12);
 }
 
-/* Square and icon-only so it fits next to Abmelden in .sidebar-bottom-row. */
 .sidebar-theme-toggle {
   display: flex;
   align-items: center;
-  justify-content: center;
-  flex: 0 0 auto;
-  width: 36px;
-  height: 36px;
-  padding: 0;
+  gap: 10px;
+  padding: 10px 14px;
   border-radius: 8px;
   color: #c7d6e0;
   font-size: 0.92rem;
+  font-weight: 500;
   border: 1px solid rgba(255, 255, 255, 0.16);
   background: rgba(255, 255, 255, 0.06);
+  width: 100%;
+  text-align: left;
   cursor: pointer;
 }
 
@@ -452,25 +451,13 @@ a {
   background: var(--color-bg);
 }
 
-.filter-panel-row {
+.filter-panel-header {
   display: flex;
   align-items: center;
   gap: 10px;
 }
 
-/* Expanded: the fields carry a label above their input, so toggle and
-   count sit on the input line (bottom) instead of the label line. */
-.filter-panel-row-expanded {
-  align-items: flex-end;
-}
-
-.filter-panel-row-expanded .filter-panel-toggle,
-.filter-panel-row-expanded .filter-panel-count {
-  margin-bottom: calc((2.1rem - 24px) / 2);
-}
-
-.filter-panel-row .filter-panel-toggle {
-  flex: 0 0 auto;
+.filter-panel-header .filter-panel-toggle {
   width: 24px;
   height: 24px;
   padding: 0;
@@ -480,7 +467,7 @@ a {
   color: var(--color-ink-soft);
 }
 
-.filter-panel-row .filter-panel-toggle:hover {
+.filter-panel-header .filter-panel-toggle:hover {
   background: var(--color-surface);
 }
 
@@ -515,11 +502,10 @@ a {
 
 .filter-bar {
   display: flex;
-  flex: 1 1 auto;
-  min-width: 0;
   flex-wrap: wrap;
   align-items: flex-end;
   gap: var(--space-sm) var(--space-md);
+  margin-top: 0.5rem;
 }
 
 .filter-bar-field,
@@ -2744,128 +2730,3 @@ button.structure-entry-main:focus-visible {
     justify-content: center;
   }
 }
-
-/* ── Anmeldung (Sidebar-Config-Link, Identität, Login-Gate) ─────────── */
-
-.sidebar-nav-bottom {
-  flex: 0 0 auto;
-  border-top: 1px solid rgba(255, 255, 255, 0.12);
-}
-
-.sidebar-identity {
-  display: flex;
-  flex-direction: column;
-  gap: 1px;
-  padding: 8px 14px 10px;
-}
-
-.sidebar-identity-label {
-  font-size: 0.66rem;
-  letter-spacing: 0.08em;
-  text-transform: uppercase;
-  color: rgba(199, 214, 224, 0.7);
-}
-
-.sidebar-identity-name {
-  font-size: 0.88rem;
-  font-weight: 600;
-  color: #fff;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
-/* Toggle (square) and Abmelden (fills the rest) share one row. */
-.sidebar-bottom-row {
-  display: flex;
-  align-items: stretch;
-  gap: 8px;
-  padding: 0 14px 12px;
-}
-
-.sidebar-logout {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  flex: 1 1 auto;
-  min-width: 0;
-  padding: 8px 14px;
-  border-radius: 8px;
-  color: #c7d6e0;
-  font-size: 0.85rem;
-  font-weight: 500;
-  border: 1px solid rgba(255, 255, 255, 0.16);
-  background: transparent;
-  cursor: pointer;
-}
-
-.sidebar-logout:hover {
-  background: rgba(255, 255, 255, 0.1);
-  color: #fff;
-}
-
-.sidebar-collapsed .sidebar-identity {
-  display: none;
-}
-
-.sidebar-collapsed .sidebar-bottom-row {
-  justify-content: center;
-  padding-inline: 0;
-}
-
-.login-gate-screen {
-  min-height: 100vh;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  padding: var(--space-md);
-  background: linear-gradient(
-    160deg,
-    var(--color-primary-deep) 0%,
-    var(--color-primary-dark) 45%,
-    var(--color-primary) 100%
-  );
-}
-
-.login-gate-card {
-  width: 100%;
-  max-width: 360px;
-  padding: 28px 26px;
-}
-
-.config-tabs {
-  display: flex;
-  gap: 4px;
-  border-bottom: 1px solid var(--color-border, rgba(0, 0, 0, 0.12));
-  margin-bottom: var(--space-md);
-}
-
-.config-tab {
-  padding: 8px 16px;
-  border-radius: 6px 6px 0 0;
-  color: inherit;
-  text-decoration: none;
-  font-size: 0.9rem;
-  font-weight: 500;
-  opacity: 0.7;
-}
-
-.config-tab:hover {
-  opacity: 1;
-  text-decoration: none;
-}
-
-.config-tab.active {
-  opacity: 1;
-  box-shadow: inset 0 -2px 0 var(--color-primary);
-}
-
-.modal-backdrop-inline {
-  position: fixed;
-  inset: 0;
-  background: rgba(0, 0, 0, 0.45);
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  z-index: 1050;
-}
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index c830c99..cd2407b 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -3,8 +3,6 @@ import Script from "next/script";
 import "bootstrap/dist/css/bootstrap.min.css";
 import "./globals.css";
 import { AppShell } from "../frontend/components/AppShell";
-import { AuthProvider } from "../frontend/components/AuthProvider";
-import { LoginGate } from "../frontend/components/LoginGate";
 
 export const metadata: Metadata = {
   title: "Leistungsbilanz",
@@ -38,11 +36,7 @@ export default function RootLayout({ children }: Readonly<{ children: React.Reac
         <Script id="theme-init" strategy="beforeInteractive">
           {THEME_INIT_SCRIPT}
         </Script>
-        <AuthProvider>
-          <LoginGate>
-            <AppShell>{children}</AppShell>
-          </LoginGate>
-        </AuthProvider>
+        <AppShell>{children}</AppShell>
       </body>
     </html>
   );
diff --git a/src/db/migrations/0013_users.sql b/src/db/migrations/0013_users.sql
deleted file mode 100644
index 6c07010..0000000
--- a/src/db/migrations/0013_users.sql
+++ /dev/null
@@ -1,13 +0,0 @@
-CREATE TABLE `users` (
-	`id` text PRIMARY KEY NOT NULL,
-	`username` text NOT NULL,
-	`password_hash` text NOT NULL,
-	`name` text NOT NULL,
-	`role` text DEFAULT 'user' NOT NULL,
-	`active` integer DEFAULT true NOT NULL,
-	`must_change_password` integer DEFAULT true NOT NULL,
-	`created_at` integer DEFAULT (unixepoch()) NOT NULL,
-	`updated_at` integer DEFAULT (unixepoch()) NOT NULL
-);
---> statement-breakpoint
-CREATE UNIQUE INDEX `users_username_unique` ON `users` (`username`);
\ No newline at end of file
diff --git a/src/db/migrations/meta/0013_snapshot.json b/src/db/migrations/meta/0013_snapshot.json
deleted file mode 100644
index bd091fb..0000000
--- a/src/db/migrations/meta/0013_snapshot.json
+++ /dev/null
@@ -1,3072 +0,0 @@
-{
-  "version": "6",
-  "dialect": "sqlite",
-  "id": "a967fdfb-171b-4f1d-aa0c-f7124e28fba3",
-  "prevId": "8029e6ab-56de-4345-8d38-0ca7462640de",
-  "tables": {
-    "buildings": {
-      "name": "buildings",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "project_id": {
-          "name": "project_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "name": {
-          "name": "name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "sort_order": {
-          "name": "sort_order",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 0
-        }
-      },
-      "indexes": {},
-      "foreignKeys": {
-        "buildings_project_id_projects_id_fk": {
-          "name": "buildings_project_id_projects_id_fk",
-          "tableFrom": "buildings",
-          "tableTo": "projects",
-          "columnsFrom": [
-            "project_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "circuit_device_rows": {
-      "name": "circuit_device_rows",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "circuit_id": {
-          "name": "circuit_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "linked_project_device_id": {
-          "name": "linked_project_device_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "sort_order": {
-          "name": "sort_order",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 0
-        },
-        "name": {
-          "name": "name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "display_name": {
-          "name": "display_name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "phase_type": {
-          "name": "phase_type",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "connection_kind": {
-          "name": "connection_kind",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "cost_group": {
-          "name": "cost_group",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "category": {
-          "name": "category",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "level": {
-          "name": "level",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "room_id": {
-          "name": "room_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "room_number_snapshot": {
-          "name": "room_number_snapshot",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "room_name_snapshot": {
-          "name": "room_name_snapshot",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "quantity": {
-          "name": "quantity",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "manual_quantity": {
-          "name": "manual_quantity",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 0
-        },
-        "power_per_unit": {
-          "name": "power_per_unit",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "simultaneity_factor": {
-          "name": "simultaneity_factor",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "cos_phi": {
-          "name": "cos_phi",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "remark": {
-          "name": "remark",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "overridden_fields": {
-          "name": "overridden_fields",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {
-        "circuit_device_rows_circuit_id_idx": {
-          "name": "circuit_device_rows_circuit_id_idx",
-          "columns": [
-            "circuit_id"
-          ],
-          "isUnique": false
-        }
-      },
-      "foreignKeys": {
-        "circuit_device_rows_circuit_id_circuits_id_fk": {
-          "name": "circuit_device_rows_circuit_id_circuits_id_fk",
-          "tableFrom": "circuit_device_rows",
-          "tableTo": "circuits",
-          "columnsFrom": [
-            "circuit_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        },
-        "circuit_device_rows_linked_project_device_id_project_devices_id_fk": {
-          "name": "circuit_device_rows_linked_project_device_id_project_devices_id_fk",
-          "tableFrom": "circuit_device_rows",
-          "tableTo": "project_devices",
-          "columnsFrom": [
-            "linked_project_device_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "set null",
-          "onUpdate": "no action"
-        },
-        "circuit_device_rows_room_id_rooms_id_fk": {
-          "name": "circuit_device_rows_room_id_rooms_id_fk",
-          "tableFrom": "circuit_device_rows",
-          "tableTo": "rooms",
-          "columnsFrom": [
-            "room_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "set null",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "circuit_list_equipment_identifiers": {
-      "name": "circuit_list_equipment_identifiers",
-      "columns": {
-        "owner_type": {
-          "name": "owner_type",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "owner_id": {
-          "name": "owner_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "circuit_list_id": {
-          "name": "circuit_list_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "equipment_identifier": {
-          "name": "equipment_identifier",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        }
-      },
-      "indexes": {
-        "circuit_list_equipment_identifiers_owner_unique": {
-          "name": "circuit_list_equipment_identifiers_owner_unique",
-          "columns": [
-            "owner_type",
-            "owner_id"
-          ],
-          "isUnique": true
-        },
-        "circuit_list_equipment_identifiers_list_identifier_unique": {
-          "name": "circuit_list_equipment_identifiers_list_identifier_unique",
-          "columns": [
-            "circuit_list_id",
-            "equipment_identifier"
-          ],
-          "isUnique": true
-        }
-      },
-      "foreignKeys": {
-        "circuit_list_equipment_identifiers_circuit_list_id_circuit_lists_id_fk": {
-          "name": "circuit_list_equipment_identifiers_circuit_list_id_circuit_lists_id_fk",
-          "tableFrom": "circuit_list_equipment_identifiers",
-          "tableTo": "circuit_lists",
-          "columnsFrom": [
-            "circuit_list_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "circuit_lists": {
-      "name": "circuit_lists",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "project_id": {
-          "name": "project_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "distribution_board_id": {
-          "name": "distribution_board_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "name": {
-          "name": "name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        }
-      },
-      "indexes": {
-        "circuit_lists_distribution_board_id_unique": {
-          "name": "circuit_lists_distribution_board_id_unique",
-          "columns": [
-            "distribution_board_id"
-          ],
-          "isUnique": true
-        }
-      },
-      "foreignKeys": {
-        "circuit_lists_project_id_projects_id_fk": {
-          "name": "circuit_lists_project_id_projects_id_fk",
-          "tableFrom": "circuit_lists",
-          "tableTo": "projects",
-          "columnsFrom": [
-            "project_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        },
-        "circuit_lists_distribution_board_id_distribution_boards_id_fk": {
-          "name": "circuit_lists_distribution_board_id_distribution_boards_id_fk",
-          "tableFrom": "circuit_lists",
-          "tableTo": "distribution_boards",
-          "columnsFrom": [
-            "distribution_board_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "circuit_protection_devices": {
-      "name": "circuit_protection_devices",
-      "columns": {
-        "circuit_id": {
-          "name": "circuit_id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "type": {
-          "name": "type",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "rated_current_a": {
-          "name": "rated_current_a",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "fuse_utilization_category": {
-          "name": "fuse_utilization_category",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "trip_characteristic": {
-          "name": "trip_characteristic",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "rcd_type": {
-          "name": "rcd_type",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "rated_residual_current_ma": {
-          "name": "rated_residual_current_ma",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {},
-      "foreignKeys": {
-        "circuit_protection_devices_circuit_id_circuits_id_fk": {
-          "name": "circuit_protection_devices_circuit_id_circuits_id_fk",
-          "tableFrom": "circuit_protection_devices",
-          "tableTo": "circuits",
-          "columnsFrom": [
-            "circuit_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "circuit_sections": {
-      "name": "circuit_sections",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "circuit_list_id": {
-          "name": "circuit_list_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "key": {
-          "name": "key",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "display_name": {
-          "name": "display_name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "prefix": {
-          "name": "prefix",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "sort_order": {
-          "name": "sort_order",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 0
-        },
-        "category": {
-          "name": "category",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "group_number": {
-          "name": "group_number",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {
-        "circuit_sections_list_key_unique": {
-          "name": "circuit_sections_list_key_unique",
-          "columns": [
-            "circuit_list_id",
-            "key"
-          ],
-          "isUnique": true
-        },
-        "circuit_sections_list_prefix_unique": {
-          "name": "circuit_sections_list_prefix_unique",
-          "columns": [
-            "circuit_list_id",
-            "prefix"
-          ],
-          "isUnique": true
-        },
-        "circuit_sections_list_category_group_unique": {
-          "name": "circuit_sections_list_category_group_unique",
-          "columns": [
-            "circuit_list_id",
-            "category",
-            "group_number"
-          ],
-          "isUnique": true
-        }
-      },
-      "foreignKeys": {
-        "circuit_sections_circuit_list_id_circuit_lists_id_fk": {
-          "name": "circuit_sections_circuit_list_id_circuit_lists_id_fk",
-          "tableFrom": "circuit_sections",
-          "tableTo": "circuit_lists",
-          "columnsFrom": [
-            "circuit_list_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "circuits": {
-      "name": "circuits",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "circuit_list_id": {
-          "name": "circuit_list_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "section_id": {
-          "name": "section_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "equipment_identifier": {
-          "name": "equipment_identifier",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "display_name": {
-          "name": "display_name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "sort_order": {
-          "name": "sort_order",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 0
-        },
-        "cable_type": {
-          "name": "cable_type",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "cable_cross_section": {
-          "name": "cable_cross_section",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "cable_length": {
-          "name": "cable_length",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "rcd_assignment": {
-          "name": "rcd_assignment",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "terminal_designation": {
-          "name": "terminal_designation",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "voltage": {
-          "name": "voltage",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "control_requirement": {
-          "name": "control_requirement",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "status": {
-          "name": "status",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "is_reserve": {
-          "name": "is_reserve",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 0
-        },
-        "remark": {
-          "name": "remark",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {
-        "circuits_section_id_idx": {
-          "name": "circuits_section_id_idx",
-          "columns": [
-            "section_id"
-          ],
-          "isUnique": false
-        },
-        "circuits_list_equipment_identifier_unique": {
-          "name": "circuits_list_equipment_identifier_unique",
-          "columns": [
-            "circuit_list_id",
-            "equipment_identifier"
-          ],
-          "isUnique": true
-        }
-      },
-      "foreignKeys": {
-        "circuits_circuit_list_id_circuit_lists_id_fk": {
-          "name": "circuits_circuit_list_id_circuit_lists_id_fk",
-          "tableFrom": "circuits",
-          "tableTo": "circuit_lists",
-          "columnsFrom": [
-            "circuit_list_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        },
-        "circuits_section_id_circuit_sections_id_fk": {
-          "name": "circuits_section_id_circuit_sections_id_fk",
-          "tableFrom": "circuits",
-          "tableTo": "circuit_sections",
-          "columnsFrom": [
-            "section_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "distribution_board_component_protection_devices": {
-      "name": "distribution_board_component_protection_devices",
-      "columns": {
-        "component_id": {
-          "name": "component_id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "type": {
-          "name": "type",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "rated_current_a": {
-          "name": "rated_current_a",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "fuse_utilization_category": {
-          "name": "fuse_utilization_category",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "trip_characteristic": {
-          "name": "trip_characteristic",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "rcd_type": {
-          "name": "rcd_type",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "rated_residual_current_ma": {
-          "name": "rated_residual_current_ma",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {},
-      "foreignKeys": {
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-        "category": {
-          "name": "category",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "quantity": {
-          "name": "quantity",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "power_per_unit": {
-          "name": "power_per_unit",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 0
-        },
-        "simultaneity_factor": {
-          "name": "simultaneity_factor",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 1
-        },
-        "cos_phi": {
-          "name": "cos_phi",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "remark": {
-          "name": "remark",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "voltage_v": {
-          "name": "voltage_v",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {},
-      "foreignKeys": {
-        "project_devices_project_id_projects_id_fk": {
-          "name": "project_devices_project_id_projects_id_fk",
-          "tableFrom": "project_devices",
-          "tableTo": "projects",
-          "columnsFrom": [
-            "project_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "project_history_stack_entries": {
-      "name": "project_history_stack_entries",
-      "columns": {
-        "change_set_id": {
-          "name": "change_set_id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "project_id": {
-          "name": "project_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "stack": {
-          "name": "stack",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "position": {
-          "name": "position",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        }
-      },
-      "indexes": {
-        "project_history_stack_entries_position_unique": {
-          "name": "project_history_stack_entries_position_unique",
-          "columns": [
-            "project_id",
-            "stack",
-            "position"
-          ],
-          "isUnique": true
-        }
-      },
-      "foreignKeys": {
-        "project_history_stack_entries_change_set_id_project_change_sets_id_fk": {
-          "name": "project_history_stack_entries_change_set_id_project_change_sets_id_fk",
-          "tableFrom": "project_history_stack_entries",
-          "tableTo": "project_change_sets",
-          "columnsFrom": [
-            "change_set_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        },
-        "project_history_stack_entries_project_id_projects_id_fk": {
-          "name": "project_history_stack_entries_project_id_projects_id_fk",
-          "tableFrom": "project_history_stack_entries",
-          "tableTo": "projects",
-          "columnsFrom": [
-            "project_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {
-        "project_history_stack_entries_stack_check": {
-          "name": "project_history_stack_entries_stack_check",
-          "value": "\"project_history_stack_entries\".\"stack\" in ('undo', 'redo')"
-        }
-      }
-    },
-    "project_revisions": {
-      "name": "project_revisions",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "project_id": {
-          "name": "project_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "revision_number": {
-          "name": "revision_number",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "created_at_iso": {
-          "name": "created_at_iso",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "actor_id": {
-          "name": "actor_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "source": {
-          "name": "source",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "description": {
-          "name": "description",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {
-        "project_revisions_project_number_unique": {
-          "name": "project_revisions_project_number_unique",
-          "columns": [
-            "project_id",
-            "revision_number"
-          ],
-          "isUnique": true
-        }
-      },
-      "foreignKeys": {
-        "project_revisions_project_id_projects_id_fk": {
-          "name": "project_revisions_project_id_projects_id_fk",
-          "tableFrom": "project_revisions",
-          "tableTo": "projects",
-          "columnsFrom": [
-            "project_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "project_snapshots": {
-      "name": "project_snapshots",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "project_id": {
-          "name": "project_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "source_revision": {
-          "name": "source_revision",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "schema_version": {
-          "name": "schema_version",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "kind": {
-          "name": "kind",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": "'named'"
-        },
-        "name": {
-          "name": "name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "description": {
-          "name": "description",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "payload_json": {
-          "name": "payload_json",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "payload_sha256": {
-          "name": "payload_sha256",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "created_at_iso": {
-          "name": "created_at_iso",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "created_by_actor_id": {
-          "name": "created_by_actor_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {
-        "project_snapshots_project_created_idx": {
-          "name": "project_snapshots_project_created_idx",
-          "columns": [
-            "project_id",
-            "created_at_iso"
-          ],
-          "isUnique": false
-        },
-        "project_snapshots_project_kind_revision_idx": {
-          "name": "project_snapshots_project_kind_revision_idx",
-          "columns": [
-            "project_id",
-            "kind",
-            "source_revision"
-          ],
-          "isUnique": false
-        },
-        "project_snapshots_project_name_unique": {
-          "name": "project_snapshots_project_name_unique",
-          "columns": [
-            "project_id",
-            "name"
-          ],
-          "isUnique": true
-        }
-      },
-      "foreignKeys": {
-        "project_snapshots_project_id_projects_id_fk": {
-          "name": "project_snapshots_project_id_projects_id_fk",
-          "tableFrom": "project_snapshots",
-          "tableTo": "projects",
-          "columnsFrom": [
-            "project_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "projects": {
-      "name": "projects",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "name": {
-          "name": "name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "internal_project_number": {
-          "name": "internal_project_number",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "external_project_number": {
-          "name": "external_project_number",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "building_owner": {
-          "name": "building_owner",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "description": {
-          "name": "description",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "is_public_building": {
-          "name": "is_public_building",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": false
-        },
-        "single_phase_voltage_v": {
-          "name": "single_phase_voltage_v",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 230
-        },
-        "three_phase_voltage_v": {
-          "name": "three_phase_voltage_v",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 400
-        },
-        "enabled_distribution_board_supply_types": {
-          "name": "enabled_distribution_board_supply_types",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": "'[\"AV\",\"SV\",\"EV\",\"USV\",\"MSR\",\"SiBe\"]'"
-        },
-        "site_address": {
-          "name": "site_address",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "work_stage": {
-          "name": "work_stage",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "project_lead": {
-          "name": "project_lead",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "project_editor": {
-          "name": "project_editor",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "current_revision": {
-          "name": "current_revision",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": 0
-        }
-      },
-      "indexes": {},
-      "foreignKeys": {},
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "rooms": {
-      "name": "rooms",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "project_id": {
-          "name": "project_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "floor_id": {
-          "name": "floor_id",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        },
-        "room_number": {
-          "name": "room_number",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "room_name": {
-          "name": "room_name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "area_m2": {
-          "name": "area_m2",
-          "type": "real",
-          "primaryKey": false,
-          "notNull": false,
-          "autoincrement": false
-        }
-      },
-      "indexes": {},
-      "foreignKeys": {
-        "rooms_project_id_projects_id_fk": {
-          "name": "rooms_project_id_projects_id_fk",
-          "tableFrom": "rooms",
-          "tableTo": "projects",
-          "columnsFrom": [
-            "project_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "cascade",
-          "onUpdate": "no action"
-        },
-        "rooms_floor_id_floors_id_fk": {
-          "name": "rooms_floor_id_floors_id_fk",
-          "tableFrom": "rooms",
-          "tableTo": "floors",
-          "columnsFrom": [
-            "floor_id"
-          ],
-          "columnsTo": [
-            "id"
-          ],
-          "onDelete": "set null",
-          "onUpdate": "no action"
-        }
-      },
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    },
-    "users": {
-      "name": "users",
-      "columns": {
-        "id": {
-          "name": "id",
-          "type": "text",
-          "primaryKey": true,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "username": {
-          "name": "username",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "password_hash": {
-          "name": "password_hash",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "name": {
-          "name": "name",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false
-        },
-        "role": {
-          "name": "role",
-          "type": "text",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": "'user'"
-        },
-        "active": {
-          "name": "active",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": true
-        },
-        "must_change_password": {
-          "name": "must_change_password",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": true
-        },
-        "created_at": {
-          "name": "created_at",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": "(unixepoch())"
-        },
-        "updated_at": {
-          "name": "updated_at",
-          "type": "integer",
-          "primaryKey": false,
-          "notNull": true,
-          "autoincrement": false,
-          "default": "(unixepoch())"
-        }
-      },
-      "indexes": {
-        "users_username_unique": {
-          "name": "users_username_unique",
-          "columns": [
-            "username"
-          ],
-          "isUnique": true
-        }
-      },
-      "foreignKeys": {},
-      "compositePrimaryKeys": {},
-      "uniqueConstraints": {},
-      "checkConstraints": {}
-    }
-  },
-  "views": {},
-  "enums": {},
-  "_meta": {
-    "schemas": {},
-    "tables": {},
-    "columns": {}
-  },
-  "internal": {
-    "indexes": {}
-  }
-}
\ No newline at end of file
diff --git a/src/db/migrations/meta/_journal.json b/src/db/migrations/meta/_journal.json
index 2a2e076..548734d 100644
--- a/src/db/migrations/meta/_journal.json
+++ b/src/db/migrations/meta/_journal.json
@@ -92,13 +92,6 @@
       "when": 1790540142918,
       "tag": "0012_good_gateway",
       "breakpoints": true
-    },
-    {
-      "idx": 13,
-      "version": "6",
-      "when": 1790624623732,
-      "tag": "0013_users",
-      "breakpoints": true
     }
   ]
 }
\ No newline at end of file
diff --git a/src/db/repositories/user.repository.ts b/src/db/repositories/user.repository.ts
deleted file mode 100644
index 1fd55c7..0000000
--- a/src/db/repositories/user.repository.ts
+++ /dev/null
@@ -1,117 +0,0 @@
-import crypto from "node:crypto";
-import { and, asc, eq } from "drizzle-orm";
-import type { AppDatabase } from "../database-context.js";
-import { users } from "../schema/users.js";
-import {
-  LastActiveAdminStoreError,
-  UsernameAlreadyExistsStoreError,
-  type CreateUserAccount,
-  type UserStore,
-} from "../../domain/ports/user.store.js";
-import type { UserRole } from "../../shared/constants/user-roles.js";
-
-function isUniqueConstraintError(error: unknown): boolean {
-  return (
-    error instanceof Error &&
-    "code" in error &&
-    (error as { code?: unknown }).code === "SQLITE_CONSTRAINT_UNIQUE"
-  );
-}
-
-export class UserRepository implements UserStore {
-  constructor(private readonly database: AppDatabase) {}
-
-  async list() {
-    const db = this.database;
-    return db.select().from(users).orderBy(asc(users.name));
-  }
-
-  async count() {
-    const db = this.database;
-    const rows = await db.select({ id: users.id }).from(users).limit(1);
-    return rows.length;
-  }
-
-  async findById(userId: string) {
-    const db = this.database;
-    const [row] = await db.select().from(users).where(eq(users.id, userId)).limit(1);
-    return row ?? null;
-  }
-
-  async findByUsername(username: string) {
-    const db = this.database;
-    const [row] = await db
-      .select()
-      .from(users)
-      .where(eq(users.username, username.trim().toLowerCase()))
-      .limit(1);
-    return row ?? null;
-  }
-
-  async create(input: CreateUserAccount) {
-    const db = this.database;
-    const id = crypto.randomUUID();
-    try {
-      await db.insert(users).values({
-        id,
-        username: input.username.trim().toLowerCase(),
-        name: input.name,
-        role: input.role,
-        passwordHash: input.passwordHash,
-        active: true,
-        mustChangePassword: true,
-      });
-    } catch (error) {
-      if (isUniqueConstraintError(error)) throw new UsernameAlreadyExistsStoreError();
-      throw error;
-    }
-    return this.findById(id);
-  }
-
-  async updateRoleAndActive(
-    userId: string,
-    patch: { role?: UserRole; active?: boolean }
-  ) {
-    return this.database.transaction((tx) => {
-      const [target] = tx.select().from(users).where(eq(users.id, userId)).limit(1).all();
-      if (!target) return null;
-
-      const removesActiveAdmin =
-        target.role === "admin" &&
-        target.active &&
-        (patch.role === "user" || patch.active === false);
-      if (removesActiveAdmin) {
-        const activeAdmins = tx
-          .select({ id: users.id })
-          .from(users)
-          .where(and(eq(users.role, "admin"), eq(users.active, true)))
-          .limit(2)
-          .all();
-        if (activeAdmins.length <= 1) throw new LastActiveAdminStoreError();
-      }
-
-      tx.update(users)
-        .set({
-          ...(patch.role !== undefined ? { role: patch.role } : {}),
-          ...(patch.active !== undefined ? { active: patch.active } : {}),
-          updatedAt: new Date(),
-        })
-        .where(eq(users.id, userId))
-        .run();
-      return tx.select().from(users).where(eq(users.id, userId)).limit(1).all()[0] ?? null;
-    });
-  }
-
-  async setPassword(
-    userId: string,
-    passwordHash: string,
-    mustChangePassword: boolean
-  ) {
-    const db = this.database;
-    await db
-      .update(users)
-      .set({ passwordHash, mustChangePassword, updatedAt: new Date() })
-      .where(eq(users.id, userId));
-    return this.findById(userId);
-  }
-}
diff --git a/src/db/schema/users.ts b/src/db/schema/users.ts
deleted file mode 100644
index 7105fb4..0000000
--- a/src/db/schema/users.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-import { sql } from "drizzle-orm";
-import { integer, sqliteTable, text, uniqueIndex } from "drizzle-orm/sqlite-core";
-import type { UserRole } from "../../shared/constants/user-roles.js";
-
-export const users = sqliteTable(
-  "users",
-  {
-    id: text("id").primaryKey(),
-    username: text("username").notNull(),
-    passwordHash: text("password_hash").notNull(),
-    name: text("name").notNull(),
-    role: text("role").$type<UserRole>().notNull().default("user"),
-    active: integer("active", { mode: "boolean" }).notNull().default(true),
-    mustChangePassword: integer("must_change_password", { mode: "boolean" })
-      .notNull()
-      .default(true),
-    createdAt: integer("created_at", { mode: "timestamp" })
-      .notNull()
-      .default(sql`(unixepoch())`),
-    updatedAt: integer("updated_at", { mode: "timestamp" })
-      .notNull()
-      .default(sql`(unixepoch())`),
-  },
-  (table) => [uniqueIndex("users_username_unique").on(table.username)]
-);
-
-export type User = typeof users.$inferSelect;
-export type NewUser = typeof users.$inferInsert;
diff --git a/src/domain/ports/user.store.ts b/src/domain/ports/user.store.ts
deleted file mode 100644
index 9b80023..0000000
--- a/src/domain/ports/user.store.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-import type { UserRole } from "../../shared/constants/user-roles.js";
-
-export interface UserAccount {
-  id: string;
-  username: string;
-  passwordHash: string;
-  name: string;
-  role: UserRole;
-  active: boolean;
-  mustChangePassword: boolean;
-  createdAt: Date;
-  updatedAt: Date;
-}
-
-export interface CreateUserAccount {
-  username: string;
-  name: string;
-  role: UserRole;
-  passwordHash: string;
-}
-
-export class UsernameAlreadyExistsStoreError extends Error {}
-export class LastActiveAdminStoreError extends Error {}
-
-export interface UserStore {
-  list(): Promise<UserAccount[]>;
-  count(): Promise<number>;
-  findById(userId: string): Promise<UserAccount | null>;
-  findByUsername(username: string): Promise<UserAccount | null>;
-  create(input: CreateUserAccount): Promise<UserAccount | null>;
-  updateRoleAndActive(
-    userId: string,
-    patch: { role?: UserRole; active?: boolean }
-  ): Promise<UserAccount | null>;
-  setPassword(
-    userId: string,
-    passwordHash: string,
-    mustChangePassword: boolean
-  ): Promise<UserAccount | null>;
-}
diff --git a/src/domain/services/user.service.ts b/src/domain/services/user.service.ts
deleted file mode 100644
index 7ea2f0b..0000000
--- a/src/domain/services/user.service.ts
+++ /dev/null
@@ -1,156 +0,0 @@
-import type { UserRole } from "../../shared/constants/user-roles.js";
-import { createLogger } from "../../shared/logging/logger.js";
-import {
-  LastActiveAdminStoreError,
-  UsernameAlreadyExistsStoreError,
-  type UserStore,
-} from "../ports/user.store.js";
-
-const logger = createLogger("user-service");
-
-export class InvalidCredentialsError extends Error {
-  constructor() {
-    super("Anmeldung fehlgeschlagen.");
-  }
-}
-
-export class UsernameTakenError extends Error {
-  constructor() {
-    super("Dieser Anmeldename ist bereits vergeben.");
-  }
-}
-
-export class WrongPasswordError extends Error {
-  constructor() {
-    super("Das aktuelle Passwort ist falsch.");
-  }
-}
-
-export class PasswordUnchangedError extends Error {
-  constructor() {
-    super("Das neue Passwort muss sich vom bisherigen unterscheiden.");
-  }
-}
-
-export class LastAdminError extends Error {
-  constructor() {
-    super("Es muss mindestens ein aktiver Administrator bleiben.");
-  }
-}
-
-export interface PasswordHasher {
-  hash(password: string): Promise<string>;
-  verify(password: string, storedHash: string): Promise<boolean>;
-}
-
-export interface UserServiceOptions {
-  bootstrap: { username: string; password: string } | null;
-}
-
-export class UserService {
-  private dummyHash: Promise<string> | null = null;
-
-  constructor(
-    private readonly repository: UserStore,
-    private readonly options: UserServiceOptions,
-    private readonly passwords: PasswordHasher
-  ) {}
-
-  /**
-   * Creates the bootstrap admin from env vars, but only while the users
-   * table is still completely empty. After the first account exists, every
-   * further account is created through Config -> Benutzer, and the bootstrap
-   * env vars are ignored - that's the whole point of them being a one-time
-   * escape hatch instead of a standing backdoor.
-   */
-  async ensureBootstrapAdmin(): Promise<void> {
-    // Warm the dummy hash at startup so even the first unknown-user login
-    // costs one scrypt run, not two.
-    await this.getDummyHash();
-    const existingCount = await this.repository.count();
-    if (existingCount > 0) return;
-    if (!this.options.bootstrap) {
-      logger.warn(
-        "no users exist and AUTH_BOOTSTRAP_USERNAME/AUTH_BOOTSTRAP_PASSWORT are not set - nobody can sign in"
-      );
-      return;
-    }
-    const passwordHash = await this.passwords.hash(this.options.bootstrap.password);
-    await this.repository.create({
-      username: this.options.bootstrap.username,
-      name: "Administrator",
-      role: "admin",
-      passwordHash,
-    });
-    logger.info("bootstrap admin created", {
-      username: this.options.bootstrap.username,
-    });
-  }
-
-  async authenticate(username: string, password: string) {
-    const user = await this.repository.findByUsername(username);
-    // Unknown users are verified against a fixed dummy hash: exactly one
-    // scrypt run either way, so response time doesn't reveal which usernames
-    // exist.
-    const passwordHash = user?.passwordHash ?? (await this.getDummyHash());
-    const passwordMatches = await this.passwords.verify(password, passwordHash);
-    if (!user || !user.active || !passwordMatches) {
-      throw new InvalidCredentialsError();
-    }
-    return user;
-  }
-
-  async createUser(input: {
-    username: string;
-    name: string;
-    role: UserRole;
-    initialPassword: string;
-  }) {
-    const existing = await this.repository.findByUsername(input.username);
-    if (existing) throw new UsernameTakenError();
-    const passwordHash = await this.passwords.hash(input.initialPassword);
-    try {
-      return await this.repository.create({
-        username: input.username,
-        name: input.name,
-        role: input.role,
-        passwordHash,
-      });
-    } catch (error) {
-      // Two admins creating the same name at once: the unique index decides.
-      if (error instanceof UsernameAlreadyExistsStoreError) throw new UsernameTakenError();
-      throw error;
-    }
-  }
-
-  async updateRoleAndActive(userId: string, patch: { role?: UserRole; active?: boolean }) {
-    try {
-      return await this.repository.updateRoleAndActive(userId, patch);
-    } catch (error) {
-      if (error instanceof LastActiveAdminStoreError) throw new LastAdminError();
-      throw error;
-    }
-  }
-
-  /** Admin-triggered reset with a new start password; forces a change on next login. */
-  async resetPassword(userId: string, newPassword: string) {
-    const passwordHash = await this.passwords.hash(newPassword);
-    return this.repository.setPassword(userId, passwordHash, true);
-  }
-
-  /** Self-service change by the signed-in user; clears mustChangePassword. */
-  async changeOwnPassword(userId: string, currentPassword: string, newPassword: string) {
-    const user = await this.repository.findById(userId);
-    if (!user) throw new WrongPasswordError();
-    const currentMatches = await this.passwords.verify(currentPassword, user.passwordHash);
-    if (!currentMatches) throw new WrongPasswordError();
-    if (newPassword === currentPassword) throw new PasswordUnchangedError();
-    const passwordHash = await this.passwords.hash(newPassword);
-    return this.repository.setPassword(userId, passwordHash, false);
-  }
-
-  private getDummyHash(): Promise<string> {
-    this.dummyHash ??= this.passwords.hash("dummy-password-for-constant-time-login");
-    return this.dummyHash;
-  }
-}
diff --git a/src/frontend/components/AuthProvider.tsx b/src/frontend/components/AuthProvider.tsx
deleted file mode 100644
index 02ab833..0000000
--- a/src/frontend/components/AuthProvider.tsx
+++ /dev/null
@@ -1,61 +0,0 @@
-"use client";
-
-import { createContext, useCallback, useContext, useEffect, useState } from "react";
-import { authApi, type AuthUserDto } from "../utils/auth-api";
-
-type AuthStatus = "loading" | "signed-in" | "signed-out";
-
-interface AuthContextValue {
-  status: AuthStatus;
-  user: AuthUserDto | undefined;
-  isAdmin: boolean;
-  reload: () => Promise<void>;
-  logout: () => Promise<void>;
-}
-
-const AuthContext = createContext<AuthContextValue | null>(null);
-
-export function AuthProvider({ children }: { children: React.ReactNode }) {
-  const [status, setStatus] = useState<AuthStatus>("loading");
-  const [user, setUser] = useState<AuthUserDto | undefined>(undefined);
-
-  const reload = useCallback(async () => {
-    try {
-      const current = await authApi.me();
-      setUser(current);
-      setStatus("signed-in");
-    } catch {
-      setUser(undefined);
-      setStatus("signed-out");
-    }
-  }, []);
-
-  useEffect(() => {
-    void reload();
-  }, [reload]);
-
-  async function logout() {
-    try {
-      await authApi.logout();
-    } finally {
-      setUser(undefined);
-      setStatus("signed-out");
-    }
-  }
-
-  return (
-    <AuthContext.Provider
-      value={{ status, user, isAdmin: user?.role === "admin", reload, logout }}
-    >
-      {children}
-    </AuthContext.Provider>
-  );
-}
-
-export function useAuth(): AuthContextValue {
-  const context = useContext(AuthContext);
-  if (!context) {
-    throw new Error("useAuth must be used within an AuthProvider");
-  }
-  return context;
-}
diff --git a/src/frontend/components/LoginGate.tsx b/src/frontend/components/LoginGate.tsx
deleted file mode 100644
index 23a2aeb..0000000
--- a/src/frontend/components/LoginGate.tsx
+++ /dev/null
@@ -1,179 +0,0 @@
-"use client";
-
-import { useState } from "react";
-import { authApi } from "../utils/auth-api";
-import { useAuth } from "./AuthProvider";
-
-export function LoginGate({ children }: { children: React.ReactNode }) {
-  const { status, user, reload } = useAuth();
-
-  if (status === "loading") {
-    return (
-      <div className="login-gate-screen">
-        <p>Lädt…</p>
-      </div>
-    );
-  }
-
-  if (status === "signed-out") {
-    return (
-      <div className="login-gate-screen">
-        <LoginForm onSignedIn={reload} />
-      </div>
-    );
-  }
-
-  if (user?.mustChangePassword) {
-    return (
-      <div className="login-gate-screen">
-        <ForcedPasswordChangeForm onChanged={reload} />
-      </div>
-    );
-  }
-
-  return <>{children}</>;
-}
-
-function LoginForm({ onSignedIn }: { onSignedIn: () => Promise<void> }) {
-  const [username, setUsername] = useState("");
-  const [password, setPassword] = useState("");
-  const [error, setError] = useState<string | null>(null);
-  const [submitting, setSubmitting] = useState(false);
-
-  async function handleSubmit(event: React.FormEvent) {
-    event.preventDefault();
-    setSubmitting(true);
-    setError(null);
-    try {
-      await authApi.login(username, password);
-      await onSignedIn();
-    } catch (err) {
-      setError(err instanceof Error ? err.message : "Anmeldung fehlgeschlagen.");
-    } finally {
-      setSubmitting(false);
-    }
-  }
-
-  return (
-    <form className="login-gate-card card" onSubmit={handleSubmit}>
-      <h1 className="h4 mb-3">Leistungsbilanz</h1>
-      <div className="mb-3">
-        <label className="form-label" htmlFor="login-username">
-          Anmeldename
-        </label>
-        <input
-          id="login-username"
-          className="form-control"
-          value={username}
-          onChange={(event) => setUsername(event.target.value)}
-          autoFocus
-          autoComplete="username"
-          required
-        />
-      </div>
-      <div className="mb-3">
-        <label className="form-label" htmlFor="login-password">
-          Passwort
-        </label>
-        <input
-          id="login-password"
-          type="password"
-          className="form-control"
-          value={password}
-          onChange={(event) => setPassword(event.target.value)}
-          autoComplete="current-password"
-          required
-        />
-      </div>
-      {error && <p className="text-danger">{error}</p>}
-      <button type="submit" className="btn btn-primary" disabled={submitting}>
-        {submitting ? "Meldet an…" : "Anmelden"}
-      </button>
-    </form>
-  );
-}
-
-function ForcedPasswordChangeForm({ onChanged }: { onChanged: () => Promise<void> }) {
-  const [currentPassword, setCurrentPassword] = useState("");
-  const [newPassword, setNewPassword] = useState("");
-  const [newPasswordRepeat, setNewPasswordRepeat] = useState("");
-  const [error, setError] = useState<string | null>(null);
-  const [submitting, setSubmitting] = useState(false);
-
-  async function handleSubmit(event: React.FormEvent) {
-    event.preventDefault();
-    if (newPassword !== newPasswordRepeat) {
-      setError("Die beiden neuen Passwörter stimmen nicht überein.");
-      return;
-    }
-    setSubmitting(true);
-    setError(null);
-    try {
-      await authApi.changePassword(currentPassword, newPassword);
-      await onChanged();
-    } catch (err) {
-      setError(err instanceof Error ? err.message : "Passwort konnte nicht geändert werden.");
-    } finally {
-      setSubmitting(false);
-    }
-  }
-
-  return (
-    <form className="login-gate-card card" onSubmit={handleSubmit}>
-      <h1 className="h4 mb-3">Neues Passwort setzen</h1>
-      <p className="text-body-secondary">
-        Dieser Zugang wurde mit einem Startpasswort angelegt. Bitte vor der
-        weiteren Nutzung ein eigenes Passwort vergeben.
-      </p>
-      <div className="mb-3">
-        <label className="form-label" htmlFor="force-current-password">
-          Aktuelles (Start-)Passwort
-        </label>
-        <input
-          id="force-current-password"
-          type="password"
-          className="form-control"
-          value={currentPassword}
-          onChange={(event) => setCurrentPassword(event.target.value)}
-          autoComplete="current-password"
-          autoFocus
-          required
-        />
-      </div>
-      <div className="mb-3">
-        <label className="form-label" htmlFor="force-new-password">
-          Neues Passwort
-        </label>
-        <input
-          id="force-new-password"
-          type="password"
-          className="form-control"
-          value={newPassword}
-          onChange={(event) => setNewPassword(event.target.value)}
-          autoComplete="new-password"
-          minLength={8}
-          required
-        />
-      </div>
-      <div className="mb-3">
-        <label className="form-label" htmlFor="force-new-password-repeat">
-          Neues Passwort wiederholen
-        </label>
-        <input
-          id="force-new-password-repeat"
-          type="password"
-          className="form-control"
-          value={newPasswordRepeat}
-          onChange={(event) => setNewPasswordRepeat(event.target.value)}
-          autoComplete="new-password"
-          minLength={8}
-          required
-        />
-      </div>
-      {error && <p className="text-danger">{error}</p>}
-      <button type="submit" className="btn btn-primary" disabled={submitting}>
-        {submitting ? "Speichert…" : "Passwort setzen"}
-      </button>
-    </form>
-  );
-}
diff --git a/src/frontend/components/Sidebar.tsx b/src/frontend/components/Sidebar.tsx
index e99b493..395cd7c 100644
--- a/src/frontend/components/Sidebar.tsx
+++ b/src/frontend/components/Sidebar.tsx
@@ -6,8 +6,6 @@ import { useEffect, useState } from "react";
 import { listProjects } from "../utils/api";
 import type { ProjectDto } from "../types";
 import { ThemeToggle } from "./ThemeToggle";
-import { useAuth } from "./AuthProvider";
-import { getConfigEntry } from "../utils/config-access";
 
 // Anchors on the project overview page (/projects/[id]).
 const PROJECT_SECTIONS = [
@@ -32,8 +30,6 @@ interface SidebarProps {
 
 export function Sidebar({ isCollapsed, onToggleCollapsed }: SidebarProps) {
   const pathname = usePathname();
-  const { user, isAdmin, logout } = useAuth();
-  const configEntry = getConfigEntry(isAdmin);
   const projectMatch = pathname?.match(PROJECT_PATH_PATTERN);
   const activeProjectId = projectMatch ? projectMatch[1] : null;
   const projectSubPath = projectMatch?.[2] ?? "";
@@ -183,34 +179,8 @@ export function Sidebar({ isCollapsed, onToggleCollapsed }: SidebarProps) {
           </>
         )}
       </nav>
-      <nav className="sidebar-nav sidebar-nav-bottom">
-        <Link
-          href={configEntry.href}
-          className={pathname?.startsWith("/config") ? "sidebar-link active" : "sidebar-link"}
-          title={configEntry.label}
-        >
-          <span className="sidebar-icon">⚙</span>
-          <span className="sidebar-label">{configEntry.label}</span>
-        </Link>
-      </nav>
       <div className="sidebar-footer">
-        {user && !isCollapsed && (
-          <div className="sidebar-identity" title={`Angemeldet als ${user.name}`}>
-            <span className="sidebar-identity-label">Angemeldet als</span>
-            <span className="sidebar-identity-name">{user.name}</span>
-          </div>
-        )}
-        {/* Toggle and Abmelden share one row: the toggle stays a fixed-size
-            square, Abmelden takes the rest of the width. Collapsed, only
-            the square toggle remains (centered). */}
-        <div className="sidebar-bottom-row">
-          <ThemeToggle />
-          {user && !isCollapsed && (
-            <button type="button" className="sidebar-logout" onClick={() => void logout()}>
-              Abmelden
-            </button>
-          )}
-        </div>
+        <ThemeToggle />
       </div>
     </aside>
   );
diff --git a/src/frontend/components/ThemeToggle.tsx b/src/frontend/components/ThemeToggle.tsx
index 2073a5e..355e0e2 100644
--- a/src/frontend/components/ThemeToggle.tsx
+++ b/src/frontend/components/ThemeToggle.tsx
@@ -48,17 +48,16 @@ export function ThemeToggle() {
   }
 
   return (
-    // Square, icon-only: it shares a row with the Abmelden button, so there
-    // is no room for a text label. The label moves to title/aria-label.
     <button
       aria-pressed={theme === "dark"}
       className="sidebar-theme-toggle"
       onClick={toggleTheme}
-      title={theme === "dark" ? "Hellmodus" : "Dunkelmodus"}
-      aria-label={theme === "dark" ? "Hellmodus einschalten" : "Dunkelmodus einschalten"}
       type="button"
     >
-      <span aria-hidden="true">{theme === "dark" ? "☀" : "☾"}</span>
+      <span className="sidebar-icon" aria-hidden="true">
+        {theme === "dark" ? "☀" : "☾"}
+      </span>
+      {theme === "dark" ? "Hellmodus" : "Dunkelmodus"}
     </button>
   );
 }
diff --git a/src/frontend/components/cable-sizing-api.ts b/src/frontend/components/cable-sizing-api.ts
index 73582b5..28530d2 100644
--- a/src/frontend/components/cable-sizing-api.ts
+++ b/src/frontend/components/cable-sizing-api.ts
@@ -6,10 +6,6 @@ import type {
   CableSizingInput,
   CableSizingResult,
 } from "../../cable-sizing/domain/cable-sizing-calculation";
-import {
-  WRITE_REQUEST_HEADER_NAME,
-  WRITE_REQUEST_HEADER_VALUE,
-} from "../../shared/constants/request-security";
 
 export interface CalculateCableSizingResponse {
   result: CableSizingResult;
@@ -21,10 +17,7 @@ export async function calculateCableSizing(
 ): Promise<CalculateCableSizingResponse> {
   const response = await fetch("/api/cable-sizing/calculate", {
     method: "POST",
-    headers: {
-      "Content-Type": "application/json",
-      [WRITE_REQUEST_HEADER_NAME]: WRITE_REQUEST_HEADER_VALUE,
-    },
+    headers: { "Content-Type": "application/json" },
     body: JSON.stringify(input),
     cache: "no-store",
   });
diff --git a/src/frontend/components/filter-panel.tsx b/src/frontend/components/filter-panel.tsx
index 9c9923b..afa1fde 100644
--- a/src/frontend/components/filter-panel.tsx
+++ b/src/frontend/components/filter-panel.tsx
@@ -55,15 +55,9 @@ export function CollapsibleFilterPanel({
     writeCollapsed(storageKey, next);
   }
 
-  // One row: toggle, then either the "Filter" label (collapsed) or the filter
-  // fields themselves (expanded), and the count at the right edge.
   return (
     <div className="filter-panel">
-      <div
-        className={
-          isCollapsed ? "filter-panel-row" : "filter-panel-row filter-panel-row-expanded"
-        }
-      >
+      <div className="filter-panel-header">
         <IconButton
           ariaControls={barId}
           ariaExpanded={!isCollapsed}
@@ -72,30 +66,29 @@ export function CollapsibleFilterPanel({
           label={isCollapsed ? "Filter einblenden" : "Filter ausblenden"}
           onClick={toggleCollapsed}
         />
-        {isCollapsed ? (
-          <>
-            <span className="filter-panel-label">Filter</span>
-            {isFilterActive ? <span className="filter-panel-badge">Filter aktiv</span> : null}
-          </>
-        ) : (
-          <div className="filter-bar" id={barId}>
-            {children}
-            {isFilterActive ? (
-              <IconButton
-                className="filter-bar-reset"
-                icon={FilterX}
-                label="Zurücksetzen"
-                onClick={onReset}
-                showLabel
-                title="Alle Filter zurücksetzen"
-              />
-            ) : null}
-          </div>
-        )}
+        <span className="filter-panel-label">Filter</span>
+        {isCollapsed && isFilterActive ? (
+          <span className="filter-panel-badge">Filter aktiv</span>
+        ) : null}
         <span aria-live="polite" className="filter-panel-count">
           {visibleCount} von {totalCount}
         </span>
       </div>
+      {isCollapsed ? null : (
+        <div className="filter-bar" id={barId}>
+          {children}
+          {isFilterActive ? (
+            <IconButton
+              className="filter-bar-reset"
+              icon={FilterX}
+              label="Zurücksetzen"
+              onClick={onReset}
+              showLabel
+              title="Alle Filter zurücksetzen"
+            />
+          ) : null}
+        </div>
+      )}
     </div>
   );
 }
diff --git a/src/frontend/utils/api.ts b/src/frontend/utils/api.ts
index 5256195..8f5a878 100644
--- a/src/frontend/utils/api.ts
+++ b/src/frontend/utils/api.ts
@@ -1,7 +1,3 @@
-import {
-  WRITE_REQUEST_HEADER_NAME,
-  WRITE_REQUEST_HEADER_VALUE,
-} from "../../shared/constants/request-security";
 import type {
   BuildingDto,
   CircuitListDto,
@@ -126,7 +122,6 @@ async function request<T>(url: string, init?: RequestInit): Promise<T> {
     ...init,
     headers: {
       "Content-Type": "application/json",
-      [WRITE_REQUEST_HEADER_NAME]: WRITE_REQUEST_HEADER_VALUE,
       ...init?.headers,
     },
     cache: "no-store",
diff --git a/src/frontend/utils/auth-api.ts b/src/frontend/utils/auth-api.ts
deleted file mode 100644
index a6f12b3..0000000
--- a/src/frontend/utils/auth-api.ts
+++ /dev/null
@@ -1,95 +0,0 @@
-import {
-  WRITE_REQUEST_HEADER_NAME,
-  WRITE_REQUEST_HEADER_VALUE,
-} from "../../shared/constants/request-security";
-
-// Small, self-contained fetch helper for the auth/user endpoints - kept
-// separate from the large domain api.ts so this feature doesn't have to
-// touch that file's shared `request()` internals.
-
-export type UserRole = "admin" | "user";
-
-export interface AuthStatusDto {
-  signedIn: boolean;
-  mustChangePassword: boolean;
-}
-
-export interface AuthUserDto {
-  id: string;
-  username: string;
-  name: string;
-  role: UserRole;
-  mustChangePassword: boolean;
-}
-
-export interface UserDto {
-  id: string;
-  username: string;
-  name: string;
-  role: UserRole;
-  active: boolean;
-  mustChangePassword: boolean;
-  createdAt: string;
-}
-
-export class AuthApiError extends Error {
-  constructor(
-    message: string,
-    public readonly status: number
-  ) {
-    super(message);
-  }
-}
-
-async function request<T>(url: string, init?: RequestInit): Promise<T> {
-  const response = await fetch(url, {
-    ...init,
-    headers: {
-      "Content-Type": "application/json",
-      [WRITE_REQUEST_HEADER_NAME]: WRITE_REQUEST_HEADER_VALUE,
-      ...init?.headers,
-    },
-    cache: "no-store",
-  });
-  if (!response.ok) {
-    let message = `Anfrage fehlgeschlagen (Status ${response.status})`;
-    try {
-      const body = (await response.json()) as { error?: unknown };
-      if (typeof body.error === "string") message = body.error;
-    } catch {
-      // Keep the generic message for non-JSON error responses.
-    }
-    throw new AuthApiError(message, response.status);
-  }
-  if (response.status === 204) return undefined as T;
-  return response.json() as Promise<T>;
-}
-
-export const authApi = {
-  status: () => request<AuthStatusDto>("/api/auth/status"),
-  login: (username: string, password: string) =>
-    request<AuthStatusDto>("/api/auth/login", {
-      method: "POST",
-      body: JSON.stringify({ username, password }),
-    }),
-  me: () => request<AuthUserDto>("/api/auth/me"),
-  changePassword: (currentPassword: string, newPassword: string) =>
-    request<{ changed: true }>("/api/auth/change-password", {
-      method: "POST",
-      body: JSON.stringify({ currentPassword, newPassword }),
-    }),
-  logout: () => request<{ signedOut: true }>("/api/auth/logout", { method: "POST" }),
-};
-
-export const userApi = {
-  list: () => request<UserDto[]>("/api/users"),
-  create: (input: { username: string; name: string; role: UserRole; initialPassword: string }) =>
-    request<UserDto>("/api/users", { method: "POST", body: JSON.stringify(input) }),
-  update: (userId: string, patch: { role?: UserRole; active?: boolean }) =>
-    request<UserDto>(`/api/users/${userId}`, { method: "PATCH", body: JSON.stringify(patch) }),
-  resetPassword: (userId: string, newPassword: string) =>
-    request<UserDto>(`/api/users/${userId}/reset-password`, {
-      method: "POST",
-      body: JSON.stringify({ newPassword }),
-    }),
-};
diff --git a/src/frontend/utils/config-access.ts b/src/frontend/utils/config-access.ts
deleted file mode 100644
index 86dd2a2..0000000
--- a/src/frontend/utils/config-access.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-export interface ConfigNavigationEntry {
-  href: string;
-  label: string;
-}
-
-const ACCOUNT_ENTRY = { href: "/config/konto", label: "Konto" } as const;
-const USERS_ENTRY = { href: "/config/benutzer", label: "Benutzer" } as const;
-
-export function getConfigTabs(isAdmin: boolean): ConfigNavigationEntry[] {
-  return isAdmin ? [USERS_ENTRY, ACCOUNT_ENTRY] : [ACCOUNT_ENTRY];
-}
-
-export function getConfigEntry(isAdmin: boolean): ConfigNavigationEntry {
-  return isAdmin ? { href: USERS_ENTRY.href, label: "Config" } : ACCOUNT_ENTRY;
-}
-
-export function getConfigRedirect(pathname: string | null, isAdmin: boolean): string | null {
-  if (pathname === "/config") {
-    return isAdmin ? USERS_ENTRY.href : ACCOUNT_ENTRY.href;
-  }
-  if (!isAdmin && pathname?.startsWith(USERS_ENTRY.href)) {
-    return ACCOUNT_ENTRY.href;
-  }
-  return null;
-}
diff --git a/src/server/auth/auth-config.ts b/src/server/auth/auth-config.ts
deleted file mode 100644
index c4c3b44..0000000
--- a/src/server/auth/auth-config.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-export const SESSION_COOKIE = "lb_session";
-
-const DEFAULT_SESSION_HOURS = 12;
-const DEFAULT_SESSION_MAX_DAYS = 7;
-
-export interface AuthConfig {
-  /** Idle timeout; slides forward on activity. */
-  sessionTtlMs: number;
-  /** Hard upper bound for a session, regardless of activity. */
-  sessionMaxAgeMs: number;
-  cookieSecure: boolean;
-  /**
-   * Only used to create the very first admin when the users table is still
-   * empty - after that, every account is created through Config -> Benutzer.
-   * Unset means: no bootstrap account, the table must already have an admin.
-   */
-  bootstrap: { username: string; password: string } | null;
-}
-
-export class AuthConfigError extends Error {}
-
-function positiveNumber(raw: string | undefined, fallback: number, name: string): number {
-  const value = Number(raw ?? fallback);
-  if (!Number.isFinite(value) || value <= 0) {
-    throw new AuthConfigError(`${name} must be a positive number.`);
-  }
-  return value;
-}
-
-export function readAuthConfig(env: NodeJS.ProcessEnv = process.env): AuthConfig {
-  const hours = positiveNumber(env.AUTH_SESSION_HOURS, DEFAULT_SESSION_HOURS, "AUTH_SESSION_HOURS");
-  const maxDays = positiveNumber(
-    env.AUTH_SESSION_MAX_DAYS,
-    DEFAULT_SESSION_MAX_DAYS,
-    "AUTH_SESSION_MAX_DAYS"
-  );
-
-  const bootstrapUsername = (env.AUTH_BOOTSTRAP_USERNAME ?? "").trim().toLowerCase();
-  const bootstrapPassword = env.AUTH_BOOTSTRAP_PASSWORT ?? "";
-  if (Boolean(bootstrapUsername) !== Boolean(bootstrapPassword)) {
-    throw new AuthConfigError(
-      "AUTH_BOOTSTRAP_USERNAME and AUTH_BOOTSTRAP_PASSWORT belong together - set both or neither."
-    );
-  }
-  if (bootstrapPassword && bootstrapPassword.length < 12) {
-    throw new AuthConfigError(
-      "AUTH_BOOTSTRAP_PASSWORT must be at least 12 characters long."
-    );
-  }
-
-  return {
-    sessionTtlMs: hours * 60 * 60 * 1000,
-    sessionMaxAgeMs: maxDays * 24 * 60 * 60 * 1000,
-    cookieSecure: (env.COOKIE_SECURE ?? "").trim().toLowerCase() === "true",
-    bootstrap: bootstrapUsername
-      ? { username: bootstrapUsername, password: bootstrapPassword }
-      : null,
-  };
-}
diff --git a/src/server/auth/auth.middleware.ts b/src/server/auth/auth.middleware.ts
deleted file mode 100644
index bafae03..0000000
--- a/src/server/auth/auth.middleware.ts
+++ /dev/null
@@ -1,156 +0,0 @@
-import type { NextFunction, Request, RequestHandler, Response } from "express";
-import { SESSION_COOKIE, type AuthConfig } from "./auth-config.js";
-import { readCookie } from "./cookie.js";
-import type { SessionStore } from "./sessions.js";
-import type { UserStore } from "../../domain/ports/user.store.js";
-import type { UserRole } from "../../shared/constants/user-roles.js";
-import {
-  WRITE_REQUEST_HEADER_NAME,
-  WRITE_REQUEST_HEADER_VALUE,
-} from "../../shared/constants/request-security.js";
-
-export interface AuthUser {
-  id: string;
-  username: string;
-  name: string;
-  role: UserRole;
-  mustChangePassword: boolean;
-}
-
-declare global {
-  namespace Express {
-    interface Request {
-      authUser?: AuthUser;
-    }
-  }
-}
-
-export function sessionIdFromRequest(req: {
-  headers: { cookie?: string | undefined };
-}): string | undefined {
-  return readCookie(req.headers.cookie, SESSION_COOKIE);
-}
-
-export async function identityFromRequest(
-  req: { headers: { cookie?: string | undefined } },
-  sessions: SessionStore,
-  users: Pick<UserStore, "findById">,
-  slideExpiry = true
-): Promise<AuthUser | undefined> {
-  const session = sessions.get(sessionIdFromRequest(req), slideExpiry);
-  if (!session) return undefined;
-  const user = await users.findById(session.userId);
-  if (!user || !user.active) return undefined;
-  return {
-    id: user.id,
-    username: user.username,
-    name: user.name,
-    role: user.role as UserRole,
-    mustChangePassword: user.mustChangePassword,
-  };
-}
-
-export function cookieOptions(authConfig: AuthConfig, maxAgeMs: number) {
-  return {
-    httpOnly: true,
-    sameSite: "lax" as const,
-    secure: authConfig.cookieSecure,
-    path: "/",
-    maxAge: maxAgeMs,
-  };
-}
-
-/** Sets the session cookie with the same remaining lifetime the server uses. */
-export function setSessionCookie(
-  res: Response,
-  authConfig: AuthConfig,
-  sessions: SessionStore,
-  sessionId: string
-): void {
-  const session = sessions.get(sessionId, false);
-  if (!session) return;
-  res.cookie(SESSION_COOKIE, sessionId, cookieOptions(authConfig, sessions.remainingMs(session)));
-}
-
-const SAFE_METHODS = new Set(["GET", "HEAD", "OPTIONS"]);
-
-/**
- * CSRF defense for cookie-authenticated writes.
- *
- * SameSite=Lax alone is not enough here: every other service on the same
- * host (other ports of the same IP) counts as "same-site" and may receive the
- * cookie. Fetch Metadata is also not guaranteed on plain HTTP in the LAN.
- * Every write therefore needs an application header that HTML forms cannot
- * set; a cross-origin fetch would require a CORS preflight, which the API does
- * not permit. Sec-Fetch-Site remains an additional browser-side check.
- */
-export function requireSameOriginForWrites(): RequestHandler {
-  return (req: Request, res: Response, next: NextFunction) => {
-    if (SAFE_METHODS.has(req.method)) {
-      next();
-      return;
-    }
-    if (req.get(WRITE_REQUEST_HEADER_NAME) !== WRITE_REQUEST_HEADER_VALUE) {
-      res.status(403).json({ error: "Schreibzugriff ohne gültigen Anwendungsnachweis abgelehnt." });
-      return;
-    }
-    const fetchSite = req.headers["sec-fetch-site"];
-    if (fetchSite === undefined || fetchSite === "same-origin" || fetchSite === "none") {
-      next();
-      return;
-    }
-    res.status(403).json({ error: "Anfrage von fremder Herkunft abgelehnt." });
-  };
-}
-
-/** Protects /api. Only login, status and logout stay reachable without a session. */
-export function createAuthGuard(
-  authConfig: AuthConfig,
-  sessions: SessionStore,
-  users: Pick<UserStore, "findById">,
-  openPaths: readonly string[] = ["/auth/login", "/auth/status", "/auth/logout"]
-): RequestHandler {
-  return (req: Request, res: Response, next: NextFunction) => {
-    if (openPaths.includes(req.path)) {
-      next();
-      return;
-    }
-    identityFromRequest(req, sessions, users)
-      .then((identity) => {
-        if (!identity) {
-          res.status(401).json({ error: "Nicht angemeldet." });
-          return;
-        }
-        req.authUser = identity;
-        const sessionId = sessionIdFromRequest(req);
-        if (sessionId) setSessionCookie(res, authConfig, sessions, sessionId);
-        next();
-      })
-      .catch(next);
-  };
-}
-
-/** Blocks everything except logout and the password change while a start password is still in use. */
-export function requirePasswordChanged(): RequestHandler {
-  const allowed = new Set(["/auth/me", "/auth/change-password", "/auth/logout"]);
-  return (req: Request, res: Response, next: NextFunction) => {
-    if (!req.authUser?.mustChangePassword || allowed.has(req.path)) {
-      next();
-      return;
-    }
-    res.status(403).json({
-      error: "Bitte zuerst ein eigenes Passwort setzen.",
-      mustChangePassword: true,
-    });
-  };
-}
-
-export function requireRole(role: UserRole): RequestHandler {
-  return (req: Request, res: Response, next: NextFunction) => {
-    if (req.authUser?.role !== role) {
-      res.status(403).json({ error: "Keine Berechtigung für diese Aktion." });
-      return;
-    }
-    next();
-  };
-}
diff --git a/src/server/auth/cookie.ts b/src/server/auth/cookie.ts
deleted file mode 100644
index 344ff65..0000000
--- a/src/server/auth/cookie.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-/** Reads one cookie value from a raw "Cookie" request header. No cookie-parser dependency needed for a single cookie. */
-export function readCookie(
-  header: string | undefined,
-  name: string
-): string | undefined {
-  if (!header) return undefined;
-  for (const part of header.split(";")) {
-    const separatorIndex = part.indexOf("=");
-    if (separatorIndex === -1) continue;
-    const key = part.slice(0, separatorIndex).trim();
-    if (key !== name) continue;
-    // A malformed value must read as "no session", not throw into a 500.
-    try {
-      return decodeURIComponent(part.slice(separatorIndex + 1).trim());
-    } catch {
-      return undefined;
-    }
-  }
-  return undefined;
-}
diff --git a/src/server/auth/login-throttle.ts b/src/server/auth/login-throttle.ts
deleted file mode 100644
index d81719b..0000000
--- a/src/server/auth/login-throttle.ts
+++ /dev/null
@@ -1,53 +0,0 @@
-/**
- * Slows down online password guessing per username.
- *
- * Keyed by username, not by client IP: every request reaches the API through
- * the Next.js rewrite, so the socket address is always the web container.
- * The trade-off is that someone who knows a username can keep that account
- * temporarily throttled; the block lifts by itself after the window, so it is
- * a nuisance, not a lockout.
- */
-export class LoginThrottle {
-  private readonly failures = new Map<string, number[]>();
-
-  constructor(
-    private readonly maxFailures = 5,
-    private readonly windowMs = 15 * 60 * 1000,
-    private readonly maxTrackedKeys = 10_000,
-    private readonly now: () => number = Date.now
-  ) {}
-
-  /** Milliseconds until another attempt is allowed; 0 = allowed now. */
-  retryAfterMs(username: string): number {
-    const recent = this.recentFailures(this.key(username));
-    if (recent.length < this.maxFailures) return 0;
-    return Math.max(0, recent[0] + this.windowMs - this.now());
-  }
-
-  recordFailure(username: string): void {
-    const key = this.key(username);
-    const recent = this.recentFailures(key);
-    recent.push(this.now());
-    if (!this.failures.has(key) && this.failures.size >= this.maxTrackedKeys) {
-      // Bound memory under a flood of random usernames: drop the oldest key.
-      const oldestKey = this.failures.keys().next().value;
-      if (oldestKey !== undefined) this.failures.delete(oldestKey);
-    }
-    this.failures.set(key, recent);
-  }
-
-  recordSuccess(username: string): void {
-    this.failures.delete(this.key(username));
-  }
-
-  private recentFailures(key: string): number[] {
-    const cutoff = this.now() - this.windowMs;
-    const recent = (this.failures.get(key) ?? []).filter((time) => time > cutoff);
-    if (recent.length === 0) this.failures.delete(key);
-    return recent;
-  }
-
-  private key(username: string): string {
-    return username.trim().toLowerCase();
-  }
-}
diff --git a/src/server/auth/password.ts b/src/server/auth/password.ts
deleted file mode 100644
index 97132af..0000000
--- a/src/server/auth/password.ts
+++ /dev/null
@@ -1,95 +0,0 @@
-import { randomBytes, scrypt, timingSafeEqual, type ScryptOptions } from "node:crypto";
-
-const SCRYPT_N = 16384;
-const SCRYPT_R = 8;
-const SCRYPT_P = 1;
-const KEY_LENGTH = 64;
-const SALT_LENGTH = 16;
-const MAX_SCRYPT_MEMORY = 64 * 1024 * 1024;
-const MIN_SCRYPT_N = 1 << 14;
-const MAX_SCRYPT_N = 1 << 16;
-const MAX_SCRYPT_R = 16;
-const MAX_SCRYPT_P = 8;
-
-// A hand-rolled wrapper instead of util.promisify(scrypt): promisify only
-// resolves to scrypt's 3-argument overload, so the 4-argument form used for
-// verification (with explicit N/r/p) doesn't type-check through it.
-function scryptAsync(
-  password: string,
-  salt: Buffer,
-  keyLength: number,
-  options?: ScryptOptions
-): Promise<Buffer> {
-  return new Promise((resolve, reject) => {
-    const callback = (error: Error | null, derivedKey: Buffer) => {
-      if (error) reject(error);
-      else resolve(derivedKey);
-    };
-    if (options) {
-      scrypt(password, salt, keyLength, options, callback);
-    } else {
-      scrypt(password, salt, keyLength, callback);
-    }
-  });
-}
-
-// Format: scrypt$N$r$p$saltHex$hashHex - the parameters travel with the
-// hash so they can be tuned later without invalidating existing rows.
-export async function hashPassword(password: string): Promise<string> {
-  const salt = randomBytes(SALT_LENGTH);
-  const derivedKey = await scryptAsync(password, salt, KEY_LENGTH, {
-    N: SCRYPT_N,
-    r: SCRYPT_R,
-    p: SCRYPT_P,
-    maxmem: MAX_SCRYPT_MEMORY,
-  });
-  return [
-    "scrypt",
-    SCRYPT_N,
-    SCRYPT_R,
-    SCRYPT_P,
-    salt.toString("hex"),
-    derivedKey.toString("hex"),
-  ].join("$");
-}
-
-export async function verifyPassword(
-  password: string,
-  storedHash: string
-): Promise<boolean> {
-  const parts = storedHash.split("$");
-  if (parts.length !== 6 || parts[0] !== "scrypt") return false;
-  const [, nRaw, rRaw, pRaw, saltHex, hashHex] = parts;
-  const n = Number(nRaw);
-  const r = Number(rRaw);
-  const p = Number(pRaw);
-  if (
-    !Number.isSafeInteger(n) ||
-    n < MIN_SCRYPT_N ||
-    n > MAX_SCRYPT_N ||
-    (n & (n - 1)) !== 0 ||
-    !Number.isSafeInteger(r) ||
-    r < 1 ||
-    r > MAX_SCRYPT_R ||
-    !Number.isSafeInteger(p) ||
-    p < 1 ||
-    p > MAX_SCRYPT_P ||
-    !/^[0-9a-f]{32}$/i.test(saltHex) ||
-    !/^[0-9a-f]{128}$/i.test(hashHex)
-  ) {
-    return false;
-  }
-  const salt = Buffer.from(saltHex, "hex");
-  const expected = Buffer.from(hashHex, "hex");
-  try {
-    const derivedKey = await scryptAsync(password, salt, expected.length, {
-      N: n,
-      r,
-      p,
-      maxmem: MAX_SCRYPT_MEMORY,
-    });
-    return timingSafeEqual(derivedKey, expected);
-  } catch {
-    return false;
-  }
-}
diff --git a/src/server/auth/sessions.ts b/src/server/auth/sessions.ts
deleted file mode 100644
index 9ee1fe0..0000000
--- a/src/server/auth/sessions.ts
+++ /dev/null
@@ -1,105 +0,0 @@
-import { randomUUID } from "node:crypto";
-
-interface Session {
-  id: string;
-  userId: string;
-  createdAt: number;
-  expiresAt: number;
-}
-
-const MAX_SESSIONS_PER_USER = 20;
-const SWEEP_INTERVAL_MS = 10 * 60 * 1000;
-
-/**
- * In-memory session store. The API runs as a single container/process, so a
- * restart clearing every session is an acceptable trade-off for the
- * simplicity of not needing a persisted session table.
- *
- * Sessions slide forward on activity (`idleTtlMs`) but never outlive
- * `absoluteTtlMs` - otherwise a stolen cookie could be kept alive forever.
- */
-export class SessionStore {
-  private readonly sessions = new Map<string, Session>();
-
-  constructor(
-    private readonly idleTtlMs: number,
-    private readonly absoluteTtlMs: number,
-    private readonly now: () => number = Date.now
-  ) {}
-
-  /** Removes expired sessions; unreferenced ones would otherwise pile up. */
-  startSweeping(): void {
-    setInterval(() => this.sweep(), SWEEP_INTERVAL_MS).unref();
-  }
-
-  sweep(): void {
-    const now = this.now();
-    for (const [id, session] of this.sessions) {
-      if (this.isExpired(session, now)) this.sessions.delete(id);
-    }
-  }
-
-  create(userId: string): Session {
-    this.enforcePerUserLimit(userId);
-    const now = this.now();
-    const session: Session = {
-      id: randomUUID(),
-      userId,
-      createdAt: now,
-      expiresAt: Math.min(now + this.idleTtlMs, now + this.absoluteTtlMs),
-    };
-    this.sessions.set(session.id, session);
-    return session;
-  }
-
-  /** Returns the session and slides its expiry forward, or undefined if gone/expired. */
-  get(sessionId: string | undefined, slideExpiry = true): Session | undefined {
-    if (!sessionId) return undefined;
-    const session = this.sessions.get(sessionId);
-    if (!session) return undefined;
-    const now = this.now();
-    if (this.isExpired(session, now)) {
-      this.sessions.delete(sessionId);
-      return undefined;
-    }
-    if (slideExpiry) {
-      session.expiresAt = Math.min(now + this.idleTtlMs, session.createdAt + this.absoluteTtlMs);
-    }
-    return session;
-  }
-
-  /** Remaining lifetime, used as cookie max-age so browser and server agree. */
-  remainingMs(session: Session): number {
-    return Math.max(0, session.expiresAt - this.now());
-  }
-
-  destroy(sessionId: string | undefined): void {
-    if (!sessionId) return;
-    this.sessions.delete(sessionId);
-  }
-
-  /** Ends every session of a user, optionally except one (e.g. the caller's own). */
-  destroyAllForUser(userId: string, exceptSessionId?: string): void {
-    for (const [id, session] of this.sessions) {
-      if (session.userId === userId && id !== exceptSessionId) {
-        this.sessions.delete(id);
-      }
-    }
-  }
-
-  private isExpired(session: Session, now: number): boolean {
-    return session.expiresAt <= now || session.createdAt + this.absoluteTtlMs <= now;
-  }
-
-  // Oldest sessions go first, so a legitimate user logging in on a new
-  // device is never refused - only memory growth is bounded.
-  private enforcePerUserLimit(userId: string): void {
-    const own = [...this.sessions.values()]
-      .filter((session) => session.userId === userId)
-      .sort((a, b) => a.createdAt - b.createdAt);
-    while (own.length >= MAX_SESSIONS_PER_USER) {
-      const oldest = own.shift();
-      if (oldest) this.sessions.delete(oldest.id);
-    }
-  }
-}
diff --git a/src/server/composition/application-repositories.ts b/src/server/composition/application-repositories.ts
index 846a0da..66fdd92 100644
--- a/src/server/composition/application-repositories.ts
+++ b/src/server/composition/application-repositories.ts
@@ -16,7 +16,6 @@ import { RoomRepository } from "../../db/repositories/room.repository.js";
 import { ExternalCsvConfigurationRepository } from "../../db/repositories/external-csv-configuration.repository.js";
 import { ExternalModelStateRepository } from "../../db/repositories/external-model-state.repository.js";
 import { DocumentBrandingRepository } from "../../db/repositories/document-branding.repository.js";
-import { UserRepository } from "../../db/repositories/user.repository.js";
 
 export const circuitDeviceRowRepository =
   new CircuitDeviceRowRepository(db);
@@ -40,4 +39,3 @@ export const externalCsvConfigurationRepository =
   new ExternalCsvConfigurationRepository(db);
 export const externalModelStateRepository = new ExternalModelStateRepository(db);
 export const documentBrandingRepository = new DocumentBrandingRepository(db);
-export const userRepository = new UserRepository(db);
diff --git a/src/server/composition/auth.ts b/src/server/composition/auth.ts
deleted file mode 100644
index 07b822b..0000000
--- a/src/server/composition/auth.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import { readAuthConfig } from "../auth/auth-config.js";
-import { LoginThrottle } from "../auth/login-throttle.js";
-import { SessionStore } from "../auth/sessions.js";
-import { UserService } from "../../domain/services/user.service.js";
-import { userRepository } from "./application-repositories.js";
-import { hashPassword, verifyPassword } from "../auth/password.js";
-
-export const authConfig = readAuthConfig();
-export const sessionStore = new SessionStore(authConfig.sessionTtlMs, authConfig.sessionMaxAgeMs);
-sessionStore.startSweeping();
-export const loginThrottle = new LoginThrottle();
-export const userService = new UserService(
-  userRepository,
-  { bootstrap: authConfig.bootstrap },
-  { hash: hashPassword, verify: verifyPassword }
-);
diff --git a/src/server/controllers/auth.controller.ts b/src/server/controllers/auth.controller.ts
deleted file mode 100644
index 5eaf699..0000000
--- a/src/server/controllers/auth.controller.ts
+++ /dev/null
@@ -1,109 +0,0 @@
-import type { Request, Response } from "express";
-import { changePasswordSchema, loginSchema } from "../../shared/validation/auth.schemas.js";
-import {
-  InvalidCredentialsError,
-  PasswordUnchangedError,
-  WrongPasswordError,
-} from "../../domain/services/user.service.js";
-import { authConfig, loginThrottle, sessionStore, userService } from "../composition/auth.js";
-import {
-  cookieOptions,
-  identityFromRequest,
-  sessionIdFromRequest,
-  setSessionCookie,
-} from "../auth/auth.middleware.js";
-import { SESSION_COOKIE } from "../auth/auth-config.js";
-import { userRepository } from "../composition/application-repositories.js";
-
-export async function getAuthStatus(req: Request, res: Response) {
-  const identity = await identityFromRequest(req, sessionStore, userRepository);
-  const sessionId = sessionIdFromRequest(req);
-  if (identity && sessionId) setSessionCookie(res, authConfig, sessionStore, sessionId);
-  res.json({
-    signedIn: Boolean(identity),
-    mustChangePassword: identity?.mustChangePassword ?? false,
-  });
-}
-
-export async function login(req: Request, res: Response) {
-  const parsed = loginSchema.safeParse(req.body);
-  if (!parsed.success) {
-    res.status(401).json({ error: "Anmeldung fehlgeschlagen." });
-    return;
-  }
-  const { username, password } = parsed.data;
-
-  const retryAfterMs = loginThrottle.retryAfterMs(username);
-  if (retryAfterMs > 0) {
-    res.setHeader("Retry-After", Math.ceil(retryAfterMs / 1000).toString());
-    res.status(429).json({
-      error: "Zu viele Fehlversuche. Bitte in einigen Minuten erneut versuchen.",
-    });
-    return;
-  }
-
-  try {
-    const user = await userService.authenticate(username, password);
-    loginThrottle.recordSuccess(username);
-    // A fresh session id on every login: an id planted before login
-    // (session fixation) never becomes authenticated.
-    sessionStore.destroy(sessionIdFromRequest(req));
-    const session = sessionStore.create(user.id);
-    setSessionCookie(res, authConfig, sessionStore, session.id);
-    res.json({ signedIn: true, mustChangePassword: user.mustChangePassword });
-  } catch (error) {
-    if (error instanceof InvalidCredentialsError) {
-      loginThrottle.recordFailure(username);
-      res.status(401).json({ error: error.message });
-      return;
-    }
-    throw error;
-  }
-}
-
-export function getMe(req: Request, res: Response) {
-  const identity = req.authUser;
-  if (!identity) {
-    res.status(401).json({ error: "Nicht angemeldet." });
-    return;
-  }
-  res.json(identity);
-}
-
-export async function changePassword(req: Request, res: Response) {
-  const identity = req.authUser;
-  if (!identity) {
-    res.status(401).json({ error: "Nicht angemeldet." });
-    return;
-  }
-  const parsed = changePasswordSchema.safeParse(req.body);
-  if (!parsed.success) {
-    res.status(400).json({ error: "Das neue Passwort muss 8 bis 200 Zeichen lang sein." });
-    return;
-  }
-  try {
-    await userService.changeOwnPassword(
-      identity.id,
-      parsed.data.currentPassword,
-      parsed.data.newPassword
-    );
-  } catch (error) {
-    if (error instanceof WrongPasswordError || error instanceof PasswordUnchangedError) {
-      res.status(400).json({ error: error.message });
-      return;
-    }
-    throw error;
-  }
-  // Every session of this account ends - including the current one, which is
-  // replaced by a fresh id so the user stays signed in on this device only.
-  sessionStore.destroyAllForUser(identity.id);
-  const session = sessionStore.create(identity.id);
-  setSessionCookie(res, authConfig, sessionStore, session.id);
-  res.json({ changed: true });
-}
-
-export function logout(req: Request, res: Response) {
-  sessionStore.destroy(sessionIdFromRequest(req));
-  res.clearCookie(SESSION_COOKIE, { ...cookieOptions(authConfig, 0), maxAge: undefined });
-  res.json({ signedOut: true });
-}
diff --git a/src/server/controllers/user.controller.ts b/src/server/controllers/user.controller.ts
deleted file mode 100644
index bdf8d0f..0000000
--- a/src/server/controllers/user.controller.ts
+++ /dev/null
@@ -1,121 +0,0 @@
-import type { Request, Response } from "express";
-import type { ZodError } from "zod";
-import {
-  createUserSchema,
-  resetPasswordSchema,
-  updateUserSchema,
-} from "../../shared/validation/user.schemas.js";
-import { LastAdminError, UsernameTakenError } from "../../domain/services/user.service.js";
-import { sessionStore, userService } from "../composition/auth.js";
-import { userRepository } from "../composition/application-repositories.js";
-
-// The password hash never leaves this layer.
-function toDto(user: {
-  id: string;
-  username: string;
-  name: string;
-  role: string;
-  active: boolean;
-  mustChangePassword: boolean;
-  createdAt: Date;
-}) {
-  return {
-    id: user.id,
-    username: user.username,
-    name: user.name,
-    role: user.role,
-    active: user.active,
-    mustChangePassword: user.mustChangePassword,
-    createdAt: user.createdAt,
-  };
-}
-
-function firstIssue(error: ZodError): string {
-  return error.issues[0]?.message ?? "Ungültige Eingabe.";
-}
-
-export async function listUsers(_req: Request, res: Response) {
-  const rows = await userRepository.list();
-  res.json(rows.map(toDto));
-}
-
-export async function createUser(req: Request, res: Response) {
-  const parsed = createUserSchema.safeParse(req.body);
-  if (!parsed.success) {
-    res.status(400).json({ error: firstIssue(parsed.error) });
-    return;
-  }
-  try {
-    const created = await userService.createUser(parsed.data);
-    if (!created) {
-      res.status(500).json({ error: "Benutzer konnte nicht angelegt werden." });
-      return;
-    }
-    res.status(201).json(toDto(created));
-  } catch (error) {
-    if (error instanceof UsernameTakenError) {
-      res.status(409).json({ error: error.message });
-      return;
-    }
-    throw error;
-  }
-}
-
-export async function updateUser(req: Request, res: Response) {
-  const { userId } = req.params;
-  if (typeof userId !== "string") {
-    res.status(400).json({ error: "Invalid userId" });
-    return;
-  }
-  const parsed = updateUserSchema.safeParse(req.body);
-  if (!parsed.success) {
-    res.status(400).json({ error: firstIssue(parsed.error) });
-    return;
-  }
-  // The signed-in admin can't lock themselves out by deactivating or
-  // demoting their own account through this endpoint.
-  if (userId === req.authUser?.id) {
-    res.status(400).json({ error: "Der eigene Zugang kann hier nicht geändert werden." });
-    return;
-  }
-  const existing = await userRepository.findById(userId);
-  if (!existing) {
-    res.status(404).json({ error: "Benutzer nicht gefunden." });
-    return;
-  }
-  try {
-    const updated = await userService.updateRoleAndActive(userId, parsed.data);
-    // Deactivation takes effect immediately, not just at the next login.
-    if (parsed.data.active === false) sessionStore.destroyAllForUser(userId);
-    res.json(updated ? toDto(updated) : null);
-  } catch (error) {
-    if (error instanceof LastAdminError) {
-      res.status(400).json({ error: error.message });
-      return;
-    }
-    throw error;
-  }
-}
-
-export async function resetUserPassword(req: Request, res: Response) {
-  const { userId } = req.params;
-  if (typeof userId !== "string") {
-    res.status(400).json({ error: "Invalid userId" });
-    return;
-  }
-  const parsed = resetPasswordSchema.safeParse(req.body);
-  if (!parsed.success) {
-    res.status(400).json({ error: firstIssue(parsed.error) });
-    return;
-  }
-  const existing = await userRepository.findById(userId);
-  if (!existing) {
-    res.status(404).json({ error: "Benutzer nicht gefunden." });
-    return;
-  }
-  const updated = await userService.resetPassword(userId, parsed.data.newPassword);
-  // A reset is usually a response to a suspected compromise: every open
-  // session of that account ends now.
-  sessionStore.destroyAllForUser(userId);
-  res.json(updated ? toDto(updated) : null);
-}
diff --git a/src/server/index.ts b/src/server/index.ts
index 9a65ce0..7cad7e3 100644
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -4,16 +4,7 @@ import { projectDeviceRouter } from "./routes/project-device.routes.js";
 import { documentBrandingRouter } from "./routes/document-branding.routes.js";
 import { projectRouter } from "./routes/project.routes.js";
 import { cableSizingRouter } from "./routes/cable-sizing.routes.js";
-import { authRouter } from "./routes/auth.routes.js";
-import { userRouter } from "./routes/user.routes.js";
 import { errorMiddleware } from "./middleware/error.middleware.js";
-import {
-  createAuthGuard,
-  requirePasswordChanged,
-  requireSameOriginForWrites,
-} from "./auth/auth.middleware.js";
-import { authConfig, sessionStore, userService } from "./composition/auth.js";
-import { userRepository } from "./composition/application-repositories.js";
 import { createLogger, toErrorMeta } from "../shared/logging/logger.js";
 import { closeDefaultDatabase } from "../db/client.js";
 
@@ -23,7 +14,6 @@ const port = Number(process.env.PORT || 3000);
 const heartbeatIntervalMs = 5 * 60 * 1000;
 const shutdownTimeoutMs = 15 * 1000;
 
-app.disable("x-powered-by");
 app.use(express.json({ limit: "25mb" }));
 
 app.use((req, res, next) => {
@@ -60,16 +50,6 @@ app.get("/health", (_req, res) => {
   res.json({ ok: true });
 });
 
-// Everything below /api requires a signed-in, active user, except
-// /auth/login, /auth/status and /auth/logout (see createAuthGuard's
-// openPaths). authRouter is mounted AFTER the guard (not before) so that
-// /auth/me and /auth/change-password still get req.authUser populated by it.
-app.use("/api", requireSameOriginForWrites());
-app.use("/api", createAuthGuard(authConfig, sessionStore, userRepository));
-app.use("/api", requirePasswordChanged());
-
-app.use("/api/auth", authRouter);
-app.use("/api/users", userRouter);
 app.use("/api/cable-sizing", cableSizingRouter);
 app.use("/api/projects", projectRouter);
 app.use("/api/global-devices", globalDeviceRouter);
@@ -97,48 +77,40 @@ setInterval(() => {
   });
 }, heartbeatIntervalMs).unref();
 
-userService
-  .ensureBootstrapAdmin()
-  .catch((error) => {
-    logger.error("bootstrap admin setup failed", toErrorMeta(error));
+const server = app.listen(port, () => {
+  logger.info("server started", { port });
+});
+
+let shuttingDown = false;
+
+function shutdown(signal: NodeJS.Signals): void {
+  if (shuttingDown) return;
+  shuttingDown = true;
+  logger.info("shutting down", { signal });
+
+  // Falls ein Request haengt oder ein Socket nicht freigegeben wird, soll der
+  // Prozess trotzdem enden, statt auf das SIGKILL des Containers zu warten.
+  const forceExit = setTimeout(() => {
+    logger.error("shutdown timed out, forcing exit");
     process.exit(1);
-  })
-  .then(() => {
-    const server = app.listen(port, () => {
-      logger.info("server started", { port });
-    });
+  }, shutdownTimeoutMs);
+  forceExit.unref();
 
-    let shuttingDown = false;
-
-    function shutdown(signal: NodeJS.Signals): void {
-      if (shuttingDown) return;
-      shuttingDown = true;
-      logger.info("shutting down", { signal });
-
-      // Falls ein Request haengt oder ein Socket nicht freigegeben wird, soll der
-      // Prozess trotzdem enden, statt auf das SIGKILL des Containers zu warten.
-      const forceExit = setTimeout(() => {
-        logger.error("shutdown timed out, forcing exit");
-        process.exit(1);
-      }, shutdownTimeoutMs);
-      forceExit.unref();
-
-      server.close((error) => {
-        if (error) logger.error("http server close failed", toErrorMeta(error));
-        try {
-          closeDefaultDatabase();
-        } catch (closeError) {
-          logger.error("database close failed", toErrorMeta(closeError));
-        }
-        logger.info("shutdown complete");
-        process.exit(error ? 1 : 0);
-      });
-
-      // Ohne das warten offene Keep-Alive-Verbindungen (z. B. die des
-      // Next.js-Servers) den Timeout oben aus; laufende Requests laufen weiter.
-      server.closeIdleConnections();
+  server.close((error) => {
+    if (error) logger.error("http server close failed", toErrorMeta(error));
+    try {
+      closeDefaultDatabase();
+    } catch (closeError) {
+      logger.error("database close failed", toErrorMeta(closeError));
     }
-
-    process.on("SIGTERM", shutdown);
-    process.on("SIGINT", shutdown);
+    logger.info("shutdown complete");
+    process.exit(error ? 1 : 0);
   });
+
+  // Ohne das warten offene Keep-Alive-Verbindungen (z. B. die des
+  // Next.js-Servers) den Timeout oben aus; laufende Requests laufen weiter.
+  server.closeIdleConnections();
+}
+
+process.on("SIGTERM", shutdown);
+process.on("SIGINT", shutdown);
diff --git a/src/server/routes/auth.routes.ts b/src/server/routes/auth.routes.ts
deleted file mode 100644
index ee1cdd1..0000000
--- a/src/server/routes/auth.routes.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import { Router } from "express";
-import {
-  changePassword,
-  getAuthStatus,
-  getMe,
-  login,
-  logout,
-} from "../controllers/auth.controller.js";
-
-export const authRouter = Router();
-
-authRouter.get("/status", getAuthStatus);
-authRouter.post("/login", login);
-authRouter.get("/me", getMe);
-authRouter.post("/change-password", changePassword);
-authRouter.post("/logout", logout);
diff --git a/src/server/routes/user.routes.ts b/src/server/routes/user.routes.ts
deleted file mode 100644
index a34699c..0000000
--- a/src/server/routes/user.routes.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import { Router } from "express";
-import { requireRole } from "../auth/auth.middleware.js";
-import {
-  createUser,
-  listUsers,
-  resetUserPassword,
-  updateUser,
-} from "../controllers/user.controller.js";
-
-export const userRouter = Router();
-
-userRouter.use(requireRole("admin"));
-userRouter.get("/", listUsers);
-userRouter.post("/", createUser);
-userRouter.patch("/:userId", updateUser);
-userRouter.post("/:userId/reset-password", resetUserPassword);
diff --git a/src/shared/constants/request-security.ts b/src/shared/constants/request-security.ts
deleted file mode 100644
index f89ce10..0000000
--- a/src/shared/constants/request-security.ts
+++ /dev/null
@@ -1,2 +0,0 @@
-export const WRITE_REQUEST_HEADER_NAME = "X-Leistungsbilanz-Request";
-export const WRITE_REQUEST_HEADER_VALUE = "1";
diff --git a/src/shared/constants/user-roles.ts b/src/shared/constants/user-roles.ts
deleted file mode 100644
index f123d5f..0000000
--- a/src/shared/constants/user-roles.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-export const USER_ROLES = ["admin", "user"] as const;
-export type UserRole = (typeof USER_ROLES)[number];
-
-export const USER_ROLE_LABEL: Record<UserRole, string> = {
-  admin: "Administrator",
-  user: "Benutzer",
-};
diff --git a/src/shared/validation/auth.schemas.ts b/src/shared/validation/auth.schemas.ts
deleted file mode 100644
index 7d95eec..0000000
--- a/src/shared/validation/auth.schemas.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import { z } from "zod";
-
-// Upper bounds keep a huge request body from being fed into scrypt.
-export const MAX_USERNAME_LENGTH = 100;
-export const MAX_PASSWORD_LENGTH = 200;
-export const MIN_PASSWORD_LENGTH = 8;
-
-export const loginSchema = z
-  .object({
-    username: z.string().trim().min(1).max(MAX_USERNAME_LENGTH),
-    password: z.string().min(1).max(MAX_PASSWORD_LENGTH),
-  })
-  .strict();
-
-export const changePasswordSchema = z
-  .object({
-    currentPassword: z.string().min(1).max(MAX_PASSWORD_LENGTH),
-    newPassword: z.string().min(MIN_PASSWORD_LENGTH).max(MAX_PASSWORD_LENGTH),
-  })
-  .strict();
diff --git a/src/shared/validation/user.schemas.ts b/src/shared/validation/user.schemas.ts
deleted file mode 100644
index cec4c5f..0000000
--- a/src/shared/validation/user.schemas.ts
+++ /dev/null
@@ -1,48 +0,0 @@
-import { z } from "zod";
-import { USER_ROLES } from "../constants/user-roles.js";
-import {
-  MAX_PASSWORD_LENGTH,
-  MAX_USERNAME_LENGTH,
-  MIN_PASSWORD_LENGTH,
-} from "./auth.schemas.js";
-
-// ASCII only: rules out look-alike Unicode names ("admіn" with a Cyrillic i)
-// and invisible whitespace. E-mail addresses fit this pattern.
-const USERNAME_PATTERN = /^[a-z0-9._@-]+$/;
-
-export const createUserSchema = z
-  .object({
-    username: z
-      .string()
-      .trim()
-      .toLowerCase()
-      .min(1)
-      .max(MAX_USERNAME_LENGTH)
-      .regex(USERNAME_PATTERN, {
-        message: "Anmeldename: nur a-z, 0-9 sowie . _ @ - erlaubt.",
-      }),
-    name: z.string().trim().min(1).max(200),
-    role: z.enum(USER_ROLES),
-    initialPassword: z.string().min(MIN_PASSWORD_LENGTH).max(MAX_PASSWORD_LENGTH),
-  })
-  .strict();
-
-export const updateUserSchema = z
-  .object({
-    role: z.enum(USER_ROLES).optional(),
-    active: z.boolean().optional(),
-  })
-  .strict()
-  .refine((value) => value.role !== undefined || value.active !== undefined, {
-    message: "Nothing to update.",
-  });
-
-export const resetPasswordSchema = z
-  .object({
-    newPassword: z.string().min(MIN_PASSWORD_LENGTH).max(MAX_PASSWORD_LENGTH),
-  })
-  .strict();
-
-export type CreateUserInput = z.infer<typeof createUserSchema>;
-export type UpdateUserInput = z.infer<typeof updateUserSchema>;
-export type ResetPasswordInput = z.infer<typeof resetPasswordSchema>;
diff --git a/tests/authentication.test.ts b/tests/authentication.test.ts
deleted file mode 100644
index e5c431d..0000000
--- a/tests/authentication.test.ts
+++ /dev/null
@@ -1,320 +0,0 @@
-import path from "node:path";
-import assert from "node:assert/strict";
-import { describe, it } from "node:test";
-import type { Request, Response } from "express";
-import { migrate } from "drizzle-orm/better-sqlite3/migrator";
-import { createDatabaseContext } from "../src/db/database-context.js";
-import { UserRepository } from "../src/db/repositories/user.repository.js";
-import {
-  InvalidCredentialsError,
-  LastAdminError,
-  PasswordUnchangedError,
-  UserService,
-  UsernameTakenError,
-  WrongPasswordError,
-} from "../src/domain/services/user.service.js";
-import { hashPassword, verifyPassword } from "../src/server/auth/password.js";
-import { SessionStore } from "../src/server/auth/sessions.js";
-import { LoginThrottle } from "../src/server/auth/login-throttle.js";
-import { readCookie } from "../src/server/auth/cookie.js";
-import { requireSameOriginForWrites } from "../src/server/auth/auth.middleware.js";
-import type { AuthConfig } from "../src/server/auth/auth-config.js";
-import { createUserSchema } from "../src/shared/validation/user.schemas.js";
-import { loginSchema } from "../src/shared/validation/auth.schemas.js";
-import {
-  WRITE_REQUEST_HEADER_NAME,
-  WRITE_REQUEST_HEADER_VALUE,
-} from "../src/shared/constants/request-security.js";
-
-const HOUR = 60 * 60 * 1000;
-
-function createUserService() {
-  const context = createDatabaseContext(":memory:");
-  migrate(context.db, { migrationsFolder: path.resolve("src", "db", "migrations") });
-  const repository = new UserRepository(context.db);
-  const config: AuthConfig = {
-    sessionTtlMs: 12 * HOUR,
-    sessionMaxAgeMs: 7 * 24 * HOUR,
-    cookieSecure: false,
-    bootstrap: { username: "admin", password: "bootstrap-password-123" },
-  };
-  return {
-    repository,
-    service: new UserService(
-      repository,
-      { bootstrap: config.bootstrap },
-      { hash: hashPassword, verify: verifyPassword }
-    ),
-  };
-}
-
-describe("password hashing", () => {
-  it("verifies the right password and rejects a wrong one", async () => {
-    const hash = await hashPassword("richtiges-passwort");
-    assert.match(hash, /^scrypt\$16384\$8\$1\$[0-9a-f]{32}\$[0-9a-f]{128}$/);
-    assert.equal(await verifyPassword("richtiges-passwort", hash), true);
-    assert.equal(await verifyPassword("falsches-passwort", hash), false);
-  });
-
-  it("uses a fresh salt per hash", async () => {
-    assert.notEqual(await hashPassword("gleich"), await hashPassword("gleich"));
-  });
-
-  it("rejects malformed stored hashes instead of throwing", async () => {
-    assert.equal(await verifyPassword("x", "not-a-hash"), false);
-    assert.equal(await verifyPassword("x", "scrypt$a$b$c$00$00"), false);
-    assert.equal(
-      await verifyPassword(
-        "x",
-        `scrypt$1073741824$8$1$${"00".repeat(16)}$${"00".repeat(64)}`
-      ),
-      false
-    );
-    assert.equal(
-      await verifyPassword("x", `scrypt$16384$8$1$00$${"00".repeat(64)}`),
-      false
-    );
-  });
-});
-
-describe("session store", () => {
-  it("expires idle sessions and slides on activity", () => {
-    let now = 0;
-    const store = new SessionStore(1 * HOUR, 24 * HOUR, () => now);
-    const session = store.create("user-1");
-    now = 50 * 60 * 1000;
-    assert.ok(store.get(session.id));
-    now += 50 * 60 * 1000;
-    assert.ok(store.get(session.id), "activity must have extended the idle window");
-    now += 2 * HOUR;
-    assert.equal(store.get(session.id), undefined);
-  });
-
-  it("never outlives the absolute lifetime, even when constantly used", () => {
-    let now = 0;
-    const store = new SessionStore(1 * HOUR, 3 * HOUR, () => now);
-    const session = store.create("user-1");
-    for (let step = 0; step < 5; step += 1) {
-      now += 30 * 60 * 1000;
-      store.get(session.id);
-    }
-    now = 3 * HOUR;
-    assert.equal(store.get(session.id), undefined);
-  });
-
-  it("ends all sessions of a user except an optional one", () => {
-    const store = new SessionStore(HOUR, 24 * HOUR);
-    const first = store.create("user-1");
-    const second = store.create("user-1");
-    const other = store.create("user-2");
-    store.destroyAllForUser("user-1", second.id);
-    assert.equal(store.get(first.id), undefined);
-    assert.ok(store.get(second.id));
-    assert.ok(store.get(other.id));
-  });
-
-  it("bounds the number of sessions per user by dropping the oldest", () => {
-    let now = 0;
-    const store = new SessionStore(HOUR, 24 * HOUR, () => now);
-    const oldest = store.create("user-1");
-    for (let index = 0; index < 20; index += 1) {
-      now += 1;
-      store.create("user-1");
-    }
-    assert.equal(store.get(oldest.id), undefined);
-  });
-});
-
-describe("login throttle", () => {
-  it("blocks a username after repeated failures and releases it after the window", () => {
-    let now = 0;
-    const throttle = new LoginThrottle(3, 15 * 60 * 1000, 100, () => now);
-    for (let attempt = 0; attempt < 3; attempt += 1) {
-      assert.equal(throttle.retryAfterMs("Admin"), 0);
-      throttle.recordFailure("admin ");
-    }
-    assert.ok(throttle.retryAfterMs("ADMIN") > 0, "normalized usernames share a counter");
-    assert.equal(throttle.retryAfterMs("someone-else"), 0);
-    now = 15 * 60 * 1000 + 1;
-    assert.equal(throttle.retryAfterMs("admin"), 0);
-  });
-
-  it("resets the counter after a successful login", () => {
-    const throttle = new LoginThrottle(2);
-    throttle.recordFailure("admin");
-    throttle.recordSuccess("admin");
-    throttle.recordFailure("admin");
-    assert.equal(throttle.retryAfterMs("admin"), 0);
-  });
-});
-
-describe("cookie parsing", () => {
-  it("reads the session cookie and ignores malformed encodings", () => {
-    assert.equal(readCookie("a=1; lb_session=abc; b=2", "lb_session"), "abc");
-    assert.equal(readCookie("lb_session=%E0%A4%A", "lb_session"), undefined);
-    assert.equal(readCookie(undefined, "lb_session"), undefined);
-  });
-});
-
-describe("same-origin guard for writes", () => {
-  function run(method: string, fetchSite?: string, includeApplicationHeader = true) {
-    let status: number | undefined;
-    let passed = false;
-    const req = {
-      method,
-      headers: {
-        ...(fetchSite ? { "sec-fetch-site": fetchSite } : {}),
-        ...(includeApplicationHeader
-          ? { [WRITE_REQUEST_HEADER_NAME.toLowerCase()]: WRITE_REQUEST_HEADER_VALUE }
-          : {}),
-      },
-      get(name: string) {
-        return this.headers[name.toLowerCase() as keyof typeof this.headers];
-      },
-    } as unknown as Request;
-    const res = {
-      status(code: number) {
-        status = code;
-        return this;
-      },
-      json() {
-        return this;
-      },
-    } as unknown as Response;
-    requireSameOriginForWrites()(req, res, () => {
-      passed = true;
-    });
-    return { passed, status };
-  }
-
-  it("lets reads and same-origin writes through", () => {
-    assert.equal(run("GET", "cross-site", false).passed, true);
-    assert.equal(run("POST", "same-origin").passed, true);
-    assert.equal(run("POST").passed, true, "scripts can send the explicit application header");
-  });
-
-  it("rejects writes without the application header or from another origin", () => {
-    assert.deepEqual(run("POST", undefined, false), { passed: false, status: 403 });
-    assert.deepEqual(run("POST", "cross-site"), { passed: false, status: 403 });
-    assert.deepEqual(run("PATCH", "same-site"), { passed: false, status: 403 });
-    assert.deepEqual(run("DELETE", "same-site"), { passed: false, status: 403 });
-  });
-});
-
-describe("input validation", () => {
-  it("rejects look-alike and whitespace usernames and normalizes case", () => {
-    const base = { name: "Test", role: "user", initialPassword: "start-passwort" };
-    assert.equal(createUserSchema.safeParse({ ...base, username: "admіn" }).success, false);
-    assert.equal(createUserSchema.safeParse({ ...base, username: "ad min" }).success, false);
-    const parsed = createUserSchema.parse({ ...base, username: " Max.Muster@Firma.de " });
-    assert.equal(parsed.username, "max.muster@firma.de");
-  });
-
-  it("caps login input length so huge bodies never reach scrypt", () => {
-    assert.equal(
-      loginSchema.safeParse({ username: "admin", password: "x".repeat(201) }).success,
-      false
-    );
-  });
-});
-
-describe("user service", () => {
-  it("creates the bootstrap admin only while the table is empty", async () => {
-    const { repository, service } = createUserService();
-    await service.ensureBootstrapAdmin();
-    await service.ensureBootstrapAdmin();
-    const users = await repository.list();
-    assert.equal(users.length, 1);
-    assert.equal(users[0].role, "admin");
-    assert.equal(users[0].mustChangePassword, true);
-  });
-
-  it("rejects unknown users, wrong passwords and deactivated accounts alike", async () => {
-    const { service } = createUserService();
-    const user = await service.createUser({
-      username: "max",
-      name: "Max",
-      role: "user",
-      initialPassword: "start-passwort",
-    });
-    assert.ok(user);
-    await assert.rejects(service.authenticate("niemand", "egal"), InvalidCredentialsError);
-    await assert.rejects(service.authenticate("max", "falsch"), InvalidCredentialsError);
-    assert.equal((await service.authenticate("MAX", "start-passwort")).id, user.id);
-    await service.updateRoleAndActive(user.id, { active: false });
-    await assert.rejects(service.authenticate("max", "start-passwort"), InvalidCredentialsError);
-  });
-
-  it("refuses duplicate usernames", async () => {
-    const { service } = createUserService();
-    const input = { username: "max", name: "Max", role: "user" as const, initialPassword: "start-passwort" };
-    await service.createUser(input);
-    await assert.rejects(service.createUser(input), UsernameTakenError);
-  });
-
-  it("never removes the last active admin", async () => {
-    const { repository, service } = createUserService();
-    await service.ensureBootstrapAdmin();
-    const [admin] = await repository.list();
-    await assert.rejects(service.updateRoleAndActive(admin.id, { role: "user" }), LastAdminError);
-    await assert.rejects(service.updateRoleAndActive(admin.id, { active: false }), LastAdminError);
-
-    const second = await service.createUser({
-      username: "zweiter",
-      name: "Zweiter",
-      role: "admin",
-      initialPassword: "start-passwort",
-    });
-    assert.ok(second);
-    await service.updateRoleAndActive(admin.id, { role: "user" });
-    await assert.rejects(service.updateRoleAndActive(second.id, { active: false }), LastAdminError);
-  });
-
-  it("preserves one active admin across concurrent updates", async () => {
-    const { repository, service } = createUserService();
-    await service.ensureBootstrapAdmin();
-    const second = await service.createUser({
-      username: "zweiter-admin",
-      name: "Zweiter Admin",
-      role: "admin",
-      initialPassword: "start-passwort",
-    });
-    assert.ok(second);
-    const [first] = (await repository.list()).filter((user) => user.username === "admin");
-
-    const results = await Promise.allSettled([
-      service.updateRoleAndActive(first.id, { role: "user" }),
-      service.updateRoleAndActive(second.id, { role: "user" }),
-    ]);
-    assert.equal(results.filter((result) => result.status === "fulfilled").length, 1);
-    assert.equal(results.filter((result) => result.status === "rejected").length, 1);
-    const activeAdmins = (await repository.list()).filter(
-      (user) => user.role === "admin" && user.active
-    );
-    assert.equal(activeAdmins.length, 1);
-  });
-
-  it("requires the current password and a different new one", async () => {
-    const { service } = createUserService();
-    const user = await service.createUser({
-      username: "max",
-      name: "Max",
-      role: "user",
-      initialPassword: "start-passwort",
-    });
-    assert.ok(user);
-    await assert.rejects(
-      service.changeOwnPassword(user.id, "falsch", "neues-passwort"),
-      WrongPasswordError
-    );
-    await assert.rejects(
-      service.changeOwnPassword(user.id, "start-passwort", "start-passwort"),
-      PasswordUnchangedError
-    );
-    const changed = await service.changeOwnPassword(user.id, "start-passwort", "neues-passwort");
-    assert.equal(changed?.mustChangePassword, false);
-
-    const reset = await service.resetPassword(user.id, "admin-vergeben");
-    assert.equal(reset?.mustChangePassword, true);
-  });
-});
diff --git a/tests/config-access.test.ts b/tests/config-access.test.ts
deleted file mode 100644
index 3fdc83d..0000000
--- a/tests/config-access.test.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import assert from "node:assert/strict";
-import { describe, it } from "node:test";
-import {
-  getConfigEntry,
-  getConfigRedirect,
-  getConfigTabs,
-} from "../src/frontend/utils/config-access.js";
-
-describe("config access", () => {
-  it("offers account settings to every signed-in user", () => {
-    assert.deepEqual(getConfigEntry(false), { href: "/config/konto", label: "Konto" });
-    assert.deepEqual(getConfigTabs(false), [{ href: "/config/konto", label: "Konto" }]);
-    assert.equal(getConfigRedirect("/config", false), "/config/konto");
-    assert.equal(getConfigRedirect("/config/konto", false), null);
-  });
-
-  it("keeps user administration admin-only", () => {
-    assert.equal(getConfigRedirect("/config/benutzer", false), "/config/konto");
-    assert.deepEqual(getConfigTabs(true), [
-      { href: "/config/benutzer", label: "Benutzer" },
-      { href: "/config/konto", label: "Konto" },
-    ]);
-    assert.deepEqual(getConfigEntry(true), { href: "/config/benutzer", label: "Config" });
-    assert.equal(getConfigRedirect("/config/benutzer", true), null);
-  });
-});
diff --git a/tests/write-request-headers.test.ts b/tests/write-request-headers.test.ts
deleted file mode 100644
index c78a277..0000000
--- a/tests/write-request-headers.test.ts
+++ /dev/null
@@ -1,40 +0,0 @@
-import assert from "node:assert/strict";
-import { describe, it } from "node:test";
-import { authApi } from "../src/frontend/utils/auth-api.js";
-import { createProject } from "../src/frontend/utils/api.js";
-import { calculateCableSizing } from "../src/frontend/components/cable-sizing-api.js";
-import type { CableSizingInput } from "../src/cable-sizing/domain/cable-sizing-calculation.js";
-import {
-  WRITE_REQUEST_HEADER_NAME,
-  WRITE_REQUEST_HEADER_VALUE,
-} from "../src/shared/constants/request-security.js";
-
-describe("write request clients", () => {
-  it("send the application header from every frontend API client", async () => {
-    const originalFetch = globalThis.fetch;
-    const requests: RequestInit[] = [];
-    globalThis.fetch = async (_input, init) => {
-      requests.push(init ?? {});
-      return new Response(JSON.stringify({}), {
-        status: 200,
-        headers: { "Content-Type": "application/json" },
-      });
-    };
-
-    try {
-      await authApi.login("admin", "start-passwort");
-      await createProject("Testprojekt");
-      await calculateCableSizing({} as CableSizingInput);
-    } finally {
-      globalThis.fetch = originalFetch;
-    }
-
-    assert.equal(requests.length, 3);
-    for (const request of requests) {
-      assert.equal(
-        new Headers(request.headers).get(WRITE_REQUEST_HEADER_NAME),
-        WRITE_REQUEST_HEADER_VALUE
-      );
-    }
-  });
-});