remove the projects feature

Being retired, so it is deleted rather than fixed — it had both defects dashboards just
had (edit dropping ?selected=, an abandoned edit following you onto the next item) and
repairing them was work for something on its way out.

Gone: the two screens and the panel apps, the three routes, the dock item and its entry
in the default dock paths (client and the three server-side copies), the page-title rule,
the app-registry entries, the barrel exports, the `projects` table with its queries and
row types, and the proj-meta/proj-layout/proj-terminals/proj-host-terminals branches in
the dashboards endpoint. The chat context and terminal state-key special cases for
`proj-layout-` went with them.

Deliberately kept: `getUserProjectsDir` in data-path.ts — the apps and dev-server routers
resolve user apps under the same on-disk Projects/ directory and are unrelated to this
feature. Nothing on disk is touched.

Needs `bun db:push` to drop the table; the schema change is the only thing standing
between the code and the database. One row was in it.

tsgo clean, 56/56 tests, no references left in src. Not yet exercised at runtime — the
restart is what will prove it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/apps/officer-web/Screens/Dashboard/Layout/Dock.tsx

@@ -148,7 +148,6 @@ export const ALL_DOCK_ITEMS: DockItem[] = [
   { label: 'Jobs', to: '/jobs', icon: Workflow, color: '#14b8a6' },
   { label: 'Logs', to: '/task-logs', icon: ScrollText, color: '#94a3b8' },
   { label: 'Terminal', to: '/terminal', icon: Monitor, color: '#f97316' },
-  { label: 'Projects', to: '/projects', icon: FolderKanban, color: '#10b981' },
   { label: 'Browser', to: '/browser', icon: Globe, color: '#06b6d4' },
   { label: 'Desktop', to: '/desktop', icon: MonitorSmartphone, color: '#ec4899' },
   { label: 'Monitor', to: '/system-monitor', icon: Activity, color: '#0ea5e9' },
@@ -156,4 +155,4 @@ export const ALL_DOCK_ITEMS: DockItem[] = [
   { label: 'Dashboards', to: '/dashboards', icon: LayoutGrid, color: '#8b5cf6' },
 ];
 
-export const DEFAULT_DOCK_PATHS = ['/', '/files', '/music', '/projects', '/dashboards', '/chat'];
+export const DEFAULT_DOCK_PATHS = ['/', '/files', '/music', '/dashboards', '/chat'];