Add print cover fields and office profile

- Project settings gain siteAddress, workStage, projectLead and
  projectEditor (project.update-settings schema version 3, migration 0009);
  versions 2 and 1 stay executable and keep the current cover values.
  Snapshot schema 6 carries the fields; older versions upgrade with null.
- Global office profile (office name/address) next to the document logo:
  table document_branding_settings, PUT /api/document-branding/office,
  editable from the print view toolbar.
- Cover page reads all fields; empty values show the "[ergänzen]" marker.
  The Planstände editor column shows the project editor.
- Shared logo constants moved to a dependency-free module so the Next.js
  bundler can import them.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/db/repositories/document-branding.repository.ts

@@ -1,9 +1,10 @@
-import { eq } from "drizzle-orm";
+import { eq, inArray } from "drizzle-orm";
 import type { AppDatabase } from "../database-context.js";
 import {
   documentBrandingAssets,
   type DocumentBrandingAsset,
 } from "../schema/document-branding-assets.js";
+import { documentBrandingSettings } from "../schema/document-branding-settings.js";
 
 // Plain repository without revision semantics: branding is global office
 // configuration, not a project mutation.
@@ -49,4 +50,37 @@ export class DocumentBrandingRepository {
         .run().changes > 0
     );
   }
+
+  getSettings<TKey extends string>(keys: readonly TKey[]): Record<TKey, string | null> {
+    const rows = this.db
+      .select()
+      .from(documentBrandingSettings)
+      .where(inArray(documentBrandingSettings.key, [...keys]))
+      .all();
+    return Object.fromEntries(
+      keys.map((key) => [key, rows.find((row) => row.key === key)?.value ?? null])
+    ) as Record<TKey, string | null>;
+  }
+
+  /** Stores the given values atomically; `null` removes a setting. */
+  setSettings(values: Record<string, string | null>) {
+    const updatedAt = new Date();
+    this.db.transaction((tx) => {
+      for (const [key, value] of Object.entries(values)) {
+        if (value === null) {
+          tx.delete(documentBrandingSettings)
+            .where(eq(documentBrandingSettings.key, key))
+            .run();
+        } else {
+          tx.insert(documentBrandingSettings)
+            .values({ key, value, updatedAt })
+            .onConflictDoUpdate({
+              target: documentBrandingSettings.key,
+              set: { value, updatedAt },
+            })
+            .run();
+        }
+      }
+    });
+  }
 }

src/db/repositories/project-settings-project-command.repository.ts

@@ -1,9 +1,12 @@
 import { and, eq, isNotNull } from "drizzle-orm";
 import {
   assertProjectSettingsUpdateProjectCommand,
+  baselineProjectSettingsUpdateCommandSchemaVersion,
   createProjectSettingsUpdateProjectCommand,
+  withoutCoverProjectSettingsUpdateCommandSchemaVersion,
   type ProjectSettingsValues,
 } from "../../domain/models/project-settings-project-command.model.js";
+import { projectCoverFields } from "../../shared/constants/project-cover.js";
 import type {
   ExecuteProjectSettingsUpdateCommandInput,
   ProjectSettingsProjectCommandStore,
@@ -40,13 +43,27 @@ export class ProjectSettingsProjectCommandRepository
     if (!current) {
       throw new Error("Project not found.");
     }
+    const currentCoverValues = {
+      siteAddress: current.siteAddress,
+      workStage: current.workStage,
+      projectLead: current.projectLead,
+      projectEditor: current.projectEditor,
+    };
+    // Older command versions do not carry every value; missing values keep
+    // the current project state and are therefore also absent from the
+    // inverse of the same version.
+    const command = input.command;
     const target: ProjectSettingsValues =
-      input.command.schemaVersion === 1
+      command.schemaVersion === baselineProjectSettingsUpdateCommandSchemaVersion
         ? {
-            ...input.command.payload,
+            ...command.payload,
             isPublicBuilding: current.isPublicBuilding,
+            ...currentCoverValues,
           }
-        : input.command.payload;
+        : command.schemaVersion ===
+            withoutCoverProjectSettingsUpdateCommandSchemaVersion
+          ? { ...command.payload, ...currentCoverValues }
+          : command.payload;
     if (projectSettingsEqual(current, target)) {
       throw new Error("Project settings did not change.");
     }
@@ -62,11 +79,15 @@ export class ProjectSettingsProjectCommandRepository
       threePhaseVoltageV: current.threePhaseVoltageV,
       enabledDistributionBoardSupplyTypes:
         current.enabledDistributionBoardSupplyTypes,
+      ...currentCoverValues,
     };
     const inverse =
-      input.command.schemaVersion === 1
+      command.schemaVersion === baselineProjectSettingsUpdateCommandSchemaVersion
         ? createBaselineProjectSettingsUpdateCommand(inverseValues)
-        : createProjectSettingsUpdateProjectCommand(inverseValues);
+        : command.schemaVersion ===
+            withoutCoverProjectSettingsUpdateCommandSchemaVersion
+          ? createWithoutCoverProjectSettingsUpdateCommand(inverseValues)
+          : createProjectSettingsUpdateProjectCommand(inverseValues);
     assertDisabledSupplyTypesAreUnused(tx, input.projectId, target);
     const updated = tx
       .update(projects)
@@ -82,11 +103,32 @@ export class ProjectSettingsProjectCommandRepository
   }
 }
 
+function createWithoutCoverProjectSettingsUpdateCommand(
+  values: ProjectSettingsValues
+) {
+  return {
+    schemaVersion: withoutCoverProjectSettingsUpdateCommandSchemaVersion,
+    type: "project.update-settings" as const,
+    payload: {
+      name: values.name,
+      internalProjectNumber: values.internalProjectNumber,
+      externalProjectNumber: values.externalProjectNumber,
+      buildingOwner: values.buildingOwner,
+      description: values.description,
+      isPublicBuilding: values.isPublicBuilding,
+      singlePhaseVoltageV: values.singlePhaseVoltageV,
+      threePhaseVoltageV: values.threePhaseVoltageV,
+      enabledDistributionBoardSupplyTypes:
+        values.enabledDistributionBoardSupplyTypes,
+    },
+  };
+}
+
 function createBaselineProjectSettingsUpdateCommand(
   values: ProjectSettingsValues
 ) {
   return {
-    schemaVersion: 1 as const,
+    schemaVersion: baselineProjectSettingsUpdateCommandSchemaVersion,
     type: "project.update-settings" as const,
     payload: {
       name: values.name,
@@ -114,8 +156,9 @@ function projectSettingsEqual(
     current.description === target.description &&
     current.isPublicBuilding === target.isPublicBuilding &&
     current.singlePhaseVoltageV === target.singlePhaseVoltageV &&
-    current.threePhaseVoltageV === target.threePhaseVoltageV
-    && sameSupplyTypes(
+    current.threePhaseVoltageV === target.threePhaseVoltageV &&
+    projectCoverFields.every((field) => current[field] === target[field]) &&
+    sameSupplyTypes(
       current.enabledDistributionBoardSupplyTypes,
       target.enabledDistributionBoardSupplyTypes
     )

src/db/repositories/project-state-restore-command.repository.ts

@@ -233,6 +233,10 @@ function replaceProjectState(
       threePhaseVoltageV: state.project.threePhaseVoltageV,
       enabledDistributionBoardSupplyTypes:
         state.project.enabledDistributionBoardSupplyTypes,
+      siteAddress: state.project.siteAddress,
+      workStage: state.project.workStage,
+      projectLead: state.project.projectLead,
+      projectEditor: state.project.projectEditor,
     })
     .where(eq(projects.id, state.project.id))
     .run();

src/db/repositories/project-state-snapshot.persistence.ts

@@ -46,6 +46,10 @@ export function readProjectStateSnapshot(
       threePhaseVoltageV: projects.threePhaseVoltageV,
       enabledDistributionBoardSupplyTypes:
         projects.enabledDistributionBoardSupplyTypes,
+      siteAddress: projects.siteAddress,
+      workStage: projects.workStage,
+      projectLead: projects.projectLead,
+      projectEditor: projects.projectEditor,
       currentRevision: projects.currentRevision,
     })
     .from(projects)
@@ -249,6 +253,10 @@ export function readProjectStateSnapshot(
       threePhaseVoltageV: project.threePhaseVoltageV,
       enabledDistributionBoardSupplyTypes:
         project.enabledDistributionBoardSupplyTypes,
+      siteAddress: project.siteAddress,
+      workStage: project.workStage,
+      projectLead: project.projectLead,
+      projectEditor: project.projectEditor,
     },
     distributionBoards: boardRows,
     externalCsvConfiguration,

src/db/repositories/project.repository.ts

@@ -31,6 +31,10 @@ export class ProjectRepository {
       enabledDistributionBoardSupplyTypes: [
         ...defaultDistributionBoardSupplyTypes,
       ],
+      siteAddress: null,
+      workStage: null,
+      projectLead: null,
+      projectEditor: null,
       currentRevision: 0,
     };
     await db.insert(projects).values(project);