In LPH 2/3 there are no circuits yet, but the office needs a power
balance by DIN 276 cost group, as in the Excel template "Leistungsbilanz -
KG400": each trade enters consumers by piece or by area (W/m²) with GLF
and cos phi; the balance sums AV and SV per cost group, adds a reserve and
derives the maximum current.
The module is separate from the circuit structure: own tables
(migration 0010), own folder src/estimate-balance and an import-free
shared calculation used by API and UI. Writes go through project commands
(estimate-balance.insert/.update/.delete with complete documents), so
revision checks and Undo/Redo apply; it is not part of project snapshots
or transfer yet. A comparison endpoint sums the device rows of all circuit
lists by cost group (longest prefix) against the estimate.
The UI adds a sidebar entry, a list of Stände (template KG 400, empty or
copy) and a spreadsheet-like editor with autosave, AMEV picker for the
GLF, totals, reserve, maximum current, comparison table and print layout.
The tests reproduce the template example exactly (143.24 kW, 148.48 kVA,
157.56 kW / 163.33 kVA with 10 % reserve, 235.75 A). See
docs/estimate-balance.md and issue #7.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Projects with several buildings could not be structured: floors and rooms
hung directly off the project. Floors can now belong to a building
(migration 0009: table buildings, nullable floors.building_id). Rooms and
distribution boards keep their floor; their building follows from it.
Existing floors stay without a building.
Buildings use the location-structure command store with
project-building.insert/.update/.delete, inverses and persistent Undo/Redo;
deleting a building with assigned floors is rejected. Floor commands carry
buildingId since command version 2. Version 1 floor commands from existing
history predate buildings and are upgraded with buildingId = null before
they are executed and persisted, so forward and inverse keep one version.
Project snapshot schema 7 stores buildings and floor.buildingId; versions
1-6 are upgraded without buildings. Restore and portable transfer include
buildings, and the transfer remaps building ids.
Buildings, floors and rooms move from the project overview to their own
page /projects/:id/struktur with three columns (Gebäude -> Etagen -> Räume)
that filter each other, and a sidebar entry. Floor selects in the board and
room dialogs are grouped by building. Unchanged dialogs close without a
command. Details in docs/building-structure.md; see issue #6.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
crypto.randomUUID() is only defined in secure contexts (HTTPS or
localhost). Opened over plain HTTP from another machine in the LAN, the
circuit list editor failed with "crypto.randomUUID is not a function"
whenever it created a circuit, device row, circuit group or distribution
board component, including typing into the -frei- row.
createClientId() uses crypto.randomUUID() where available and otherwise
builds an RFC 4122 version 4 UUID from crypto.getRandomValues(), which
works in every context. AGENTS.md notes the rule.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- 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>
- Seitenansicht (/projects/:projectId/print): tabular cover page, board
overview with supply structure and power sums, one plan per board with a
repeating title block; PDF via the browser print dialog with named @page
rules (A4 portrait cover, A4/A3 landscape plans, page x of y).
- Distribution-board info card (board number, location, fed-from, remark)
in the board edit dialog, persisted through the additively extended
distribution-board.update command (migration 0008, snapshot schema 6,
legacy subtree commands normalized).
- Global document logo upload (PNG/JPEG/SVG, max 2 MB) outside project
revisions and snapshots.
- fed-from stays free text; the overview hierarchy and cumulated sums are
preliminary until the feed link is modeled.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
