feat: task problem/solution split + maintenance icons on rooms/calendar

- TechnicalPage: redesign task cards with separate "Задача" and "Решение" sections
  - "Задача": problem description + problem photos (editable before done)
  - "Решение": technician resolution comment + resolution photos (green section)
  - Resolution comment in CompletionModal now saves to resolution_notes field
  - Resolution photos save to resolution_photos (no longer mixed with problem photos)
- RoomModal history tab: maintenance entries show separate problem/resolution sections
- Backend: add resolution_notes, resolution_photos to PATCH allowed fields
- Migration 029: resolution_notes TEXT + resolution_photos TEXT[] columns
- RoomsPage: load active maintenance tasks, show 🔧 неисправность badge on room cards
- CalendarPage: load active maintenance tasks, show 🔧 неиспр. label in calendar row
- BookingCalendar: activeMaintenance prop, WS handler updates maintenance set on task changes
- CalendarPage WS: handle housekeeping_task_created to update activeMaintenance set

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

src/components/calendar/BookingCalendar.tsx

@@ -32,6 +32,8 @@ interface BookingCalendarProps {
   onMaintenanceTaskCreate?: (roomId: string, description: string, priority: HkPriority, photos: string[]) => void
   /** roomId → assignee name, for tooltip on "убирается" */
   cleaningAssignees?: Record<string, string>
+  /** Set of room IDs that have active maintenance tasks */
+  activeMaintenance?: Set<string>
   fadingBookingIds?: Set<string>
   rentalObjects?: RentalObject[]
   rentalBookings?: RentalBooking[]
@@ -65,7 +67,7 @@ function getRoomTypeColor(type: string): string {
   return map[type] ?? 'bg-slate-100 text-slate-600 dark:bg-slate-700 dark:text-slate-300'
 }
 
-export function BookingCalendar({ rooms, bookings, slug, onBookingCreate, onBookingUpdate, onBookingBulkUpdate, onRoomUpdate, onMaintenanceTaskCreate, cleaningAssignees = {}, fadingBookingIds, rentalObjects, rentalBookings, onRentalBookingCreate, locks = new Map(), onDraftStart, onDraftCancel, wsConnected, priceOverrides }: BookingCalendarProps) {
+export function BookingCalendar({ rooms, bookings, slug, onBookingCreate, onBookingUpdate, onBookingBulkUpdate, onRoomUpdate, onMaintenanceTaskCreate, cleaningAssignees = {}, activeMaintenance = new Set(), fadingBookingIds, rentalObjects, rentalBookings, onRentalBookingCreate, locks = new Map(), onDraftStart, onDraftCancel, wsConnected, priceOverrides }: BookingCalendarProps) {
   const [startDate, setStartDate] = useState(() => startOfDay(new Date()))
   const [visibleDays, setVisibleDays] = useState(DAYS_VISIBLE)
 
@@ -521,6 +523,9 @@ export function BookingCalendar({ rooms, bookings, slug, onBookingCreate, onBook
                       {room.status === 'blocked' && (
                         <span className="text-[10px] text-slate-400 font-medium leading-none">🔒 закрыт</span>
                       )}
+                      {activeMaintenance.has(room.id) && room.status !== 'maintenance' && (
+                        <span className="text-[10px] text-red-500 dark:text-red-400 font-medium leading-none" title="Есть активная тех. задача">🔧 неиспр.</span>
+                      )}
                       {room.status !== 'maintenance' && room.status !== 'blocked' &&
                         (room.housekeepingStatus === 'dirty' || room.housekeepingStatus === 'cleaning') && (
                         <span