Add print view, board info card and document logo upload

- 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>

src/server/index.ts

@@ -2,6 +2,7 @@ import express from "express";
 import { globalDeviceRouter } from "./routes/global-device.routes.js";
 import { projectDeviceRouter } from "./routes/project-device.routes.js";
 import { cableSizingRouter } from "./routes/cable-sizing.routes.js";
+import { documentBrandingRouter } from "./routes/document-branding.routes.js";
 import { projectRouter } from "./routes/project.routes.js";
 import { errorMiddleware } from "./middleware/error.middleware.js";
 import { createLogger, toErrorMeta } from "../shared/logging/logger.js";
@@ -53,6 +54,7 @@ app.use("/api/projects", projectRouter);
 app.use("/api/global-devices", globalDeviceRouter);
 app.use("/api/project-devices", projectDeviceRouter);
 app.use("/api/cable-sizing", cableSizingRouter);
+app.use("/api/document-branding", documentBrandingRouter);
 
 app.use(errorMiddleware);