fix: room number + photos in task cards; time tracking for tasks

- Backend POST housekeeping: include photos in INSERT, return task with room JOIN
- Backend PATCH housekeeping: set started_at on in_progress, return task with room JOIN
- WS broadcasts now include room_number/assignee_name from JOIN
- Frontend: normalizeTask() helper maps snake_case WS fields to camelCase
- TechnicalPage: fix room number display (roomNumber || room_number)
- TechnicalPage: show time spent (started_at → completed_at) on task cards
- HousekeepingPage: history tab now includes maintenance reports (no category filter)
- HousekeepingPage: HistoryCard shows photos, notes, time spent, maintenance styling
- Migration 028: started_at TIMESTAMPTZ column on housekeeping_tasks
- types: add startedAt? to HousekeepingTask

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

backend/migrations/028_task_started_at.sql

@@ -0,0 +1 @@
+ALTER TABLE housekeeping_tasks ADD COLUMN IF NOT EXISTS started_at TIMESTAMPTZ;

backend/src/routes/housekeeping.ts

@@ -60,7 +60,7 @@ const housekeeping: FastifyPluginAsync = async (fastify) => {
   // ── POST /api/hotels/:slug/housekeeping ────────────────────────────────────
   fastify.post<SlugParam & { Body: {
     room_id?: string; type: string; priority?: string
-    assignee_id?: string; notes?: string; due_date?: string; category?: string
+    assignee_id?: string; notes?: string; due_date?: string; category?: string; photos?: string[]
   } }>(
     '/api/hotels/:slug/housekeeping',
     { onRequest: [fastify.authenticate] },
@@ -72,13 +72,21 @@ const housekeeping: FastifyPluginAsync = async (fastify) => {
       const hotelId = await getHotelId(slug)
       if (!hotelId) return reply.code(404).send({ error: 'Hotel not found' })
 
-      const { room_id, type, priority = 'medium', assignee_id, notes, due_date, category = 'housekeeping' } = request.body
-      const { rows } = await db.query(
+      const { room_id, type, priority = 'medium', assignee_id, notes, due_date, category = 'housekeeping', photos = [] } = request.body
+      const { rows: inserted } = await db.query(
         `INSERT INTO housekeeping_tasks
-           (hotel_id, room_id, type, priority, assignee_id, notes, due_date, category)
-         VALUES ($1,$2,$3,$4,$5,$6,$7,$8) RETURNING *`,
+           (hotel_id, room_id, type, priority, assignee_id, notes, due_date, category, photos)
+         VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9) RETURNING id`,
         [hotelId, room_id ?? null, type, priority,
-         assignee_id ?? null, notes ?? null, due_date ?? null, category],
+         assignee_id ?? null, notes ?? null, due_date ?? null, category, photos],
+      )
+      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
+           LEFT JOIN rooms r ON r.id = t.room_id
+           LEFT JOIN users u ON u.id = t.assignee_id
+          WHERE t.id = $1`,
+        [inserted[0].id],
       )
       return reply.code(201).send(rows[0])
     },
@@ -109,7 +117,10 @@ const housekeeping: FastifyPluginAsync = async (fastify) => {
         }
       }
 
-      // Auto-set completed_at when marking done
+      // Auto-set timestamps based on status transitions
+      if (request.body.status === 'in_progress') {
+        updates.push(`started_at = COALESCE(started_at, NOW())`)
+      }
       if (request.body.status === 'done') {
         updates.push(`completed_at = NOW()`)
       } else if (request.body.status && request.body.status !== 'done') {
@@ -119,12 +130,21 @@ const housekeeping: FastifyPluginAsync = async (fastify) => {
       if (updates.length === 0) return reply.code(400).send({ error: 'Nothing to update' })
       values.push(id, hotelId)
 
-      const { rows } = await db.query(
+      const { rows: updated } = await db.query(
         `UPDATE housekeeping_tasks SET ${updates.join(', ')}
-          WHERE id = $${idx} AND hotel_id = $${idx + 1} RETURNING *`,
+          WHERE id = $${idx} AND hotel_id = $${idx + 1} RETURNING id`,
         values,
       )
-      if (!rows[0]) return reply.code(404).send({ error: 'Task not found' })
+      if (!updated[0]) return reply.code(404).send({ error: 'Task not found' })
+
+      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
+           LEFT JOIN rooms r ON r.id = t.room_id
+           LEFT JOIN users u ON u.id = t.assignee_id
+          WHERE t.id = $1`,
+        [updated[0].id],
+      )
       const task = rows[0]
 
       // When task is marked in_progress → room becomes 'cleaning'