feat: dish recognition job context, diary linkage, home widget, history page

Backend:
- Rename recognition_jobs → dish_recognition_jobs; add target_date and
  target_meal_type columns to capture scan context at submission time
- Add job_id FK on meal_diary so entries are linked to their origin job
- New GET /ai/jobs endpoint returns today's unlinked jobs for the current user
- diary.Entry and CreateRequest gain job_id field; repository reads/writes it
- CORS middleware: allow Accept-Language and Cache-Control headers
- Logging middleware: implement http.Flusher on responseWriter (needed for SSE)
- Consolidate migrations into a single 001_initial_schema.sql

Flutter:
- POST /ai/recognize-dish now sends target_date and target_meal_type
- DishResultSheet accepts jobId; _addToDiary includes it in the diary payload,
  saves last-used meal type to SharedPreferences, invalidates todayJobsProvider
- TodayJobsNotifier + todayJobsProvider: loads unlinked jobs via GET /ai/jobs
- Home screen shows _TodayJobsWidget (up to 3 tiles) between macros and meals;
  tapping a done tile reopens DishResultSheet with the stored result
- Quick Actions row: third button "История" → /scan/history
- New RecognitionHistoryScreen: full-screen list of today's unlinked jobs
- LocalPreferences wrapper over SharedPreferences (last_used_meal_type)
- app_theme: apply Google Fonts Roboto as default font family

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

client/lib/features/home/home_screen.dart

@@ -6,6 +6,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 import 'package:image_picker/image_picker.dart';
 
+import '../../core/storage/local_preferences_provider.dart';
 import '../../core/theme/app_colors.dart';
 import '../../shared/models/diary_entry.dart';
 import '../../shared/models/home_summary.dart';
@@ -47,11 +48,14 @@ class HomeScreen extends ConsumerWidget {
     final expiringSoon = homeSummaryState.valueOrNull?.expiringSoon ?? [];
     final recommendations = homeSummaryState.valueOrNull?.recommendations ?? [];
 
+    final todayJobs = ref.watch(todayJobsProvider).valueOrNull ?? [];
+
     return Scaffold(
       body: RefreshIndicator(
         onRefresh: () async {
           ref.read(homeProvider.notifier).load();
           ref.invalidate(diaryProvider(dateString));
+          ref.invalidate(todayJobsProvider);
         },
         child: CustomScrollView(
           slivers: [
@@ -78,6 +82,10 @@ class HomeScreen extends ConsumerWidget {
                     fatG: loggedFat,
                     carbsG: loggedCarbs,
                   ),
+                  if (todayJobs.isNotEmpty) ...[
+                    const SizedBox(height: 16),
+                    _TodayJobsWidget(jobs: todayJobs),
+                  ],
                   const SizedBox(height: 16),
                   _DailyMealsSection(
                     mealTypeIds: userMealTypes,
@@ -777,10 +785,22 @@ Future<void> _pickAndShowDishResult(
     builder: (_) => _DishProgressDialog(notifier: progressNotifier),
   );
 
-  // 4. Submit image and listen to SSE stream.
+  // 4. Determine target date and meal type for context.
+  final selectedDate = ref.read(selectedDateProvider);
+  final targetDate = formatDateForDiary(selectedDate);
+  final localPreferences = ref.read(localPreferencesProvider);
+  final resolvedMealType = mealTypeId.isNotEmpty
+      ? mealTypeId
+      : localPreferences.getLastUsedMealType();
+
+  // 5. Submit image and listen to SSE stream.
   final service = ref.read(recognitionServiceProvider);
   try {
-    final jobCreated = await service.submitDishRecognition(image);
+    final jobCreated = await service.submitDishRecognition(
+      image,
+      targetDate: targetDate,
+      targetMealType: resolvedMealType,
+    );
     if (!context.mounted) return;
 
     await for (final event in service.streamJobEvents(jobCreated.jobId)) {
@@ -803,7 +823,8 @@ Future<void> _pickAndShowDishResult(
             useSafeArea: true,
             builder: (sheetContext) => DishResultSheet(
               dish: event.result,
-              preselectedMealType: mealTypeId,
+              preselectedMealType: mealTypeId.isNotEmpty ? mealTypeId : null,
+              jobId: jobCreated.jobId,
               onAdded: () => Navigator.pop(sheetContext),
             ),
           );
@@ -1065,6 +1086,123 @@ class _ExpiringBanner extends StatelessWidget {
   }
 }
 
+// ── Today's recognition jobs widget ───────────────────────────
+
+class _TodayJobsWidget extends ConsumerWidget {
+  final List<DishJobSummary> jobs;
+
+  const _TodayJobsWidget({required this.jobs});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final theme = Theme.of(context);
+    final visibleJobs = jobs.take(3).toList();
+    final hasMore = jobs.length > 3;
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Row(
+          children: [
+            Text('Распознавания', style: theme.textTheme.titleSmall),
+            const Spacer(),
+            if (hasMore)
+              TextButton(
+                onPressed: () => context.push('/scan/history'),
+                style: TextButton.styleFrom(
+                  visualDensity: VisualDensity.compact,
+                  padding: const EdgeInsets.symmetric(horizontal: 8),
+                ),
+                child: Text(
+                  'Все',
+                  style: theme.textTheme.labelMedium?.copyWith(
+                    color: theme.colorScheme.primary,
+                  ),
+                ),
+              ),
+          ],
+        ),
+        const SizedBox(height: 8),
+        ...visibleJobs.map((job) => Padding(
+              padding: const EdgeInsets.only(bottom: 8),
+              child: _JobTile(job: job),
+            )),
+      ],
+    );
+  }
+}
+
+class _JobTile extends ConsumerWidget {
+  final DishJobSummary job;
+
+  const _JobTile({required this.job});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final theme = Theme.of(context);
+
+    final isDone = job.status == 'done';
+    final isFailed = job.status == 'failed';
+    final isProcessing =
+        job.status == 'processing' || job.status == 'pending';
+
+    final IconData statusIcon;
+    final Color statusColor;
+    if (isDone) {
+      statusIcon = Icons.check_circle_outline;
+      statusColor = Colors.green;
+    } else if (isFailed) {
+      statusIcon = Icons.error_outline;
+      statusColor = theme.colorScheme.error;
+    } else {
+      statusIcon = Icons.hourglass_top_outlined;
+      statusColor = theme.colorScheme.primary;
+    }
+
+    final dishName = job.result?.candidates.isNotEmpty == true
+        ? job.result!.best.dishName
+        : null;
+    final subtitle = dishName ?? (isFailed ? (job.error ?? 'Ошибка') : 'Обрабатывается…');
+
+    return Card(
+      child: ListTile(
+        leading: Icon(statusIcon, color: statusColor),
+        title: Text(
+          dishName ?? (isProcessing ? 'Распознаётся…' : 'Ошибка'),
+          style: theme.textTheme.bodyMedium,
+        ),
+        subtitle: Text(
+          [
+            if (job.targetMealType != null) job.targetMealType,
+            if (job.targetDate != null) job.targetDate,
+          ].join(' · ').isEmpty ? subtitle : [
+            if (job.targetMealType != null) job.targetMealType,
+            if (job.targetDate != null) job.targetDate,
+          ].join(' · '),
+          style: theme.textTheme.bodySmall?.copyWith(
+            color: theme.colorScheme.onSurfaceVariant,
+          ),
+        ),
+        onTap: isDone && job.result != null
+            ? () {
+                showModalBottomSheet(
+                  context: context,
+                  isScrollControlled: true,
+                  useSafeArea: true,
+                  builder: (sheetContext) => DishResultSheet(
+                    dish: job.result!,
+                    preselectedMealType: job.targetMealType,
+                    jobId: job.id,
+                    onAdded: () => Navigator.pop(sheetContext),
+                  ),
+                );
+              }
+            : null,
+      ),
+    );
+  }
+}
+
 // ── Quick actions ─────────────────────────────────────────────
 
 class _QuickActionsRow extends StatelessWidget {
@@ -1089,6 +1227,14 @@ class _QuickActionsRow extends StatelessWidget {
             onTap: () => context.push('/menu'),
           ),
         ),
+        const SizedBox(width: 8),
+        Expanded(
+          child: _ActionButton(
+            icon: Icons.history,
+            label: 'История',
+            onTap: () => context.push('/scan/history'),
+          ),
+        ),
       ],
     );
   }