feat: emergency room closure for urgent maintenance tasks

- Backend housekeeping POST: when priority=urgent + category=maintenance + room_id
  → auto sets room status=maintenance with maintenance_from/to dates
  → closes room for emergency_close_days (default 1 day)
  → broadcasts room_updated WS event
- housekeeping-settings: add emergency_close_days column (migration 030, default 1)
- TechnicalPage: rename "Срочно" → "Экстренно!", show "🔒 Номер закрыт" badge for urgent active tasks
- HousekeepingPage plans tab: new "Экстренное закрытие номера" setting with day picker (1/2/3/5/7/14 days)
- api.ts HkSettings: add emergency_close_days field

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

backend/src/routes/housekeeping-settings.ts

@@ -8,6 +8,7 @@ export interface HkSettings {
   checkout_priority: string
   inspection_after_clean: boolean
   require_completion_photo: boolean
+  emergency_close_days: number
 }
 
 const DEFAULT_SETTINGS: HkSettings = {
@@ -15,11 +16,12 @@ const DEFAULT_SETTINGS: HkSettings = {
   checkout_priority: 'high',
   inspection_after_clean: true,
   require_completion_photo: false,
+  emergency_close_days: 1,
 }
 
 export async function getHkSettings(hotelId: string): Promise<HkSettings> {
   const { rows } = await db.query(
-    'SELECT checkout_auto, checkout_priority, inspection_after_clean, require_completion_photo FROM housekeeping_settings WHERE hotel_id = $1',
+    'SELECT checkout_auto, checkout_priority, inspection_after_clean, require_completion_photo, emergency_close_days FROM housekeeping_settings WHERE hotel_id = $1',
     [hotelId],
   )
   return rows[0] ?? DEFAULT_SETTINGS
@@ -59,15 +61,16 @@ const housekeepingSettings: FastifyPluginAsync = async (fastify) => {
       const hotelId = await getHotelId(slug)
       if (!hotelId) return reply.code(404).send({ error: 'Hotel not found' })
 
-      const { checkout_auto, checkout_priority, inspection_after_clean, require_completion_photo } = request.body
+      const { checkout_auto, checkout_priority, inspection_after_clean, require_completion_photo, emergency_close_days } = request.body
       await db.query(
-        `INSERT INTO housekeeping_settings (hotel_id, checkout_auto, checkout_priority, inspection_after_clean, require_completion_photo)
-         VALUES ($1, $2, $3, $4, $5)
+        `INSERT INTO housekeeping_settings (hotel_id, checkout_auto, checkout_priority, inspection_after_clean, require_completion_photo, emergency_close_days)
+         VALUES ($1, $2, $3, $4, $5, $6)
          ON CONFLICT (hotel_id) DO UPDATE SET
            checkout_auto             = COALESCE(EXCLUDED.checkout_auto,             housekeeping_settings.checkout_auto),
            checkout_priority         = COALESCE(EXCLUDED.checkout_priority,         housekeeping_settings.checkout_priority),
            inspection_after_clean    = COALESCE(EXCLUDED.inspection_after_clean,    housekeeping_settings.inspection_after_clean),
            require_completion_photo  = COALESCE(EXCLUDED.require_completion_photo,  housekeeping_settings.require_completion_photo),
+           emergency_close_days      = COALESCE(EXCLUDED.emergency_close_days,      housekeeping_settings.emergency_close_days),
            updated_at                = NOW()`,
         [
           hotelId,
@@ -75,6 +78,7 @@ const housekeepingSettings: FastifyPluginAsync = async (fastify) => {
           checkout_priority        ?? DEFAULT_SETTINGS.checkout_priority,
           inspection_after_clean   ?? DEFAULT_SETTINGS.inspection_after_clean,
           require_completion_photo ?? DEFAULT_SETTINGS.require_completion_photo,
+          emergency_close_days     ?? DEFAULT_SETTINGS.emergency_close_days,
         ],
       )
       return getHkSettings(hotelId)

backend/src/routes/housekeeping.ts

@@ -81,6 +81,24 @@ const housekeeping: FastifyPluginAsync = async (fastify) => {
         [hotelId, room_id ?? null, type, priority,
          assignee_id ?? null, notes ?? null, due_date ?? null, category, photos],
       )
+      // If priority=urgent and room_id → close the room for emergency_close_days
+      if (priority === 'urgent' && room_id && category === 'maintenance') {
+        const settings = await getHkSettings(hotelId).catch(() => null)
+        const closeDays = settings?.emergency_close_days ?? 1
+        const from = new Date().toISOString().slice(0, 10)
+        const toDate = new Date()
+        toDate.setDate(toDate.getDate() + closeDays)
+        const to = toDate.toISOString().slice(0, 10)
+        await db.query(
+          `UPDATE rooms SET status = 'maintenance', maintenance_from = $2, maintenance_to = $3 WHERE id = $1`,
+          [room_id, from, to],
+        )
+        broadcast(slug, {
+          type: 'room_updated',
+          room: { id: room_id, status: 'maintenance', maintenanceFrom: from, maintenanceTo: to },
+        })
+      }
+
       const { rows } = await db.query(
         `SELECT t.*, r.number AS room_number, r.type AS room_type, u.name AS assignee_name
            FROM housekeeping_tasks t