feat: personal equipment tracking, order assignment, purge fix, widget consolidation

- Migration 084: new persoenliche_ausruestung table with catalog link, user
  assignment, soft delete; adds zuweisung_typ/ausruestung_id/persoenlich_id
  columns to ausruestung_anfrage_positionen; seeds feature group + 5 permissions

- Fix user data purge: table was shop_anfragen, renamed to ausruestung_anfragen
  in mig 046 — caused full transaction rollback. Also keep mitglieder_profile
  row but NULL FDISK-synced fields (dienstgrad, geburtsdatum, etc.) instead of
  deleting the profile

- Personal equipment CRUD: backend service/controller/routes at
  /api/persoenliche-ausruestung; frontend page with DataTable, user filter,
  catalog Autocomplete, FAB create dialog; widget in Status group; sidebar
  entry (Checkroom icon); card in MitgliedDetail Tab 0

- Ausruestungsanfrage item assignment: when a request reaches erledigt,
  auto-opens ItemAssignmentDialog listing all delivered positions; each item
  can be assigned as general equipment (vehicle/storage), personal item (user,
  prefilled with requester), or not tracked; POST /requests/:id/assign backend

- StatCard refactored to use WidgetCard as outer shell for consistent header
  styling across all dashboard widget templates

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/src/app.ts

@@ -108,6 +108,7 @@ import checklistRoutes         from './routes/checklist.routes';
 import fahrzeugTypRoutes       from './routes/fahrzeugTyp.routes';
 import ausruestungTypRoutes    from './routes/ausruestungTyp.routes';
 import buchhaltungRoutes        from './routes/buchhaltung.routes';
+import personalEquipmentRoutes  from './routes/personalEquipment.routes';
 
 app.use('/api/auth',        authRoutes);
 app.use('/api/user',        userRoutes);
@@ -138,6 +139,7 @@ app.use('/api/checklisten',       checklistRoutes);
 app.use('/api/fahrzeug-typen',    fahrzeugTypRoutes);
 app.use('/api/ausruestung-typen', ausruestungTypRoutes);
 app.use('/api/buchhaltung',      buchhaltungRoutes);
+app.use('/api/persoenliche-ausruestung', personalEquipmentRoutes);
 
 // Static file serving for uploads (authenticated)
 const uploadsDir = process.env.NODE_ENV === 'production' ? '/app/uploads' : path.resolve(__dirname, '../../uploads');