fix: fix menu generation errors and show planned meals on home screen

Backend fixes:
- migration 003: add 'menu' value to recipe_source enum (was causing SQLSTATE 22P02)
- migration 004: rename recipe_products→recipe_ingredients, product_id→ingredient_id (was causing SQLSTATE 42P01)
- dish/repository.go: fix INSERT INTO tags using $1/$1 for two columns → $1/$2 (was causing SQLSTATE 42P08)
- home/handler.go: replace non-existent saved_recipes table with correct joins (recipes→dishes→dish_translations, user_saved_recipes) so today's plan and recommendations load correctly
- reqlog: new slog.Handler wrapper that adds request_id and stack trace to ERROR-level logs
- all handlers: slog.Error→slog.ErrorContext so error logs include request context; writeError includes request_id in response body

Client:
- home_screen.dart: extend home screen to future dates, show planned meals as ghost entries
- l10n: add new localisation keys for home screen date navigation and planned meal UI

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

client/lib/l10n/app_ar.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "وضع علامة كمأكول",
+  "plannedMealLabel": "مخطط",
+  "generateWeekLabel": "تخطيط الأسبوع",
+  "generateWeekSubtitle": "سيقوم الذكاء الاصطناعي بإنشاء قائمة طعام تشمل الإفطار والغداء والعشاء لكامل الأسبوع",
+  "generatingMenu": "جارٍ إنشاء القائمة...",
+  "weekPlannedLabel": "تم تخطيط الأسبوع"
 }

client/lib/l10n/app_de.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "Als gegessen markieren",
+  "plannedMealLabel": "Geplant",
+  "generateWeekLabel": "Woche planen",
+  "generateWeekSubtitle": "KI erstellt einen Menüplan mit Frühstück, Mittagessen und Abendessen für die ganze Woche",
+  "generatingMenu": "Menü wird erstellt...",
+  "weekPlannedLabel": "Woche geplant"
 }

client/lib/l10n/app_en.arb

@@ -129,5 +129,9 @@
     }
   },
   "markAsEaten": "Mark as eaten",
-  "plannedMealLabel": "Planned"
+  "plannedMealLabel": "Planned",
+  "generateWeekLabel": "Plan the week",
+  "generateWeekSubtitle": "AI will create a menu with breakfast, lunch and dinner for the whole week",
+  "generatingMenu": "Generating menu...",
+  "weekPlannedLabel": "Week planned"
 }

client/lib/l10n/app_es.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "Marcar como comido",
+  "plannedMealLabel": "Planificado",
+  "generateWeekLabel": "Planificar la semana",
+  "generateWeekSubtitle": "La IA creará un menú con desayuno, comida y cena para toda la semana",
+  "generatingMenu": "Generando menú...",
+  "weekPlannedLabel": "Semana planificada"
 }

client/lib/l10n/app_fr.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "Marquer comme mangé",
+  "plannedMealLabel": "Planifié",
+  "generateWeekLabel": "Planifier la semaine",
+  "generateWeekSubtitle": "L'IA créera un menu avec petit-déjeuner, déjeuner et dîner pour toute la semaine",
+  "generatingMenu": "Génération du menu...",
+  "weekPlannedLabel": "Semaine planifiée"
 }

client/lib/l10n/app_hi.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "खाया हुआ चिह्नित करें",
+  "plannedMealLabel": "नियोजित",
+  "generateWeekLabel": "सप्ताह की योजना बनाएं",
+  "generateWeekSubtitle": "AI पूरे सप्ताह के लिए नाश्ता, दोपहर का खाना और रात के खाने के साथ मेनू बनाएगा",
+  "generatingMenu": "मेनू बना रहे हैं...",
+  "weekPlannedLabel": "सप्ताह की योजना बनाई गई"
 }

client/lib/l10n/app_it.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "Segna come mangiato",
+  "plannedMealLabel": "Pianificato",
+  "generateWeekLabel": "Pianifica la settimana",
+  "generateWeekSubtitle": "L'AI creerà un menu con colazione, pranzo e cena per tutta la settimana",
+  "generatingMenu": "Generazione menu...",
+  "weekPlannedLabel": "Settimana pianificata"
 }

client/lib/l10n/app_ja.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "食べた印をつける",
+  "plannedMealLabel": "予定済み",
+  "generateWeekLabel": "週を計画する",
+  "generateWeekSubtitle": "AIが一週間の朝食・昼食・夕食のメニューを作成します",
+  "generatingMenu": "メニューを生成中...",
+  "weekPlannedLabel": "週の計画済み"
 }

client/lib/l10n/app_ko.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "먹은 것으로 표시",
+  "plannedMealLabel": "계획됨",
+  "generateWeekLabel": "주간 계획하기",
+  "generateWeekSubtitle": "AI가 한 주 동안 아침, 점심, 저녁 식사 메뉴를 만들어 드립니다",
+  "generatingMenu": "메뉴 생성 중...",
+  "weekPlannedLabel": "주간 계획 완료"
 }

client/lib/l10n/app_localizations.dart

@@ -807,6 +807,30 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Planned'**
   String get plannedMealLabel;
+
+  /// No description provided for @generateWeekLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Plan the week'**
+  String get generateWeekLabel;
+
+  /// No description provided for @generateWeekSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'AI will create a menu with breakfast, lunch and dinner for the whole week'**
+  String get generateWeekSubtitle;
+
+  /// No description provided for @generatingMenu.
+  ///
+  /// In en, this message translates to:
+  /// **'Generating menu...'**
+  String get generatingMenu;
+
+  /// No description provided for @weekPlannedLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Week planned'**
+  String get weekPlannedLabel;
 }
 
 class _AppLocalizationsDelegate

client/lib/l10n/app_localizations_ar.dart

@@ -355,8 +355,21 @@ class AppLocalizationsAr extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => 'وضع علامة كمأكول';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => 'مخطط';
+
+  @override
+  String get generateWeekLabel => 'تخطيط الأسبوع';
+
+  @override
+  String get generateWeekSubtitle =>
+      'سيقوم الذكاء الاصطناعي بإنشاء قائمة طعام تشمل الإفطار والغداء والعشاء لكامل الأسبوع';
+
+  @override
+  String get generatingMenu => 'جارٍ إنشاء القائمة...';
+
+  @override
+  String get weekPlannedLabel => 'تم تخطيط الأسبوع';
 }

client/lib/l10n/app_localizations_de.dart

@@ -357,8 +357,21 @@ class AppLocalizationsDe extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => 'Als gegessen markieren';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => 'Geplant';
+
+  @override
+  String get generateWeekLabel => 'Woche planen';
+
+  @override
+  String get generateWeekSubtitle =>
+      'KI erstellt einen Menüplan mit Frühstück, Mittagessen und Abendessen für die ganze Woche';
+
+  @override
+  String get generatingMenu => 'Menü wird erstellt...';
+
+  @override
+  String get weekPlannedLabel => 'Woche geplant';
 }

client/lib/l10n/app_localizations_en.dart

@@ -359,4 +359,17 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get plannedMealLabel => 'Planned';
+
+  @override
+  String get generateWeekLabel => 'Plan the week';
+
+  @override
+  String get generateWeekSubtitle =>
+      'AI will create a menu with breakfast, lunch and dinner for the whole week';
+
+  @override
+  String get generatingMenu => 'Generating menu...';
+
+  @override
+  String get weekPlannedLabel => 'Week planned';
 }

client/lib/l10n/app_localizations_es.dart

@@ -357,8 +357,21 @@ class AppLocalizationsEs extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => 'Marcar como comido';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => 'Planificado';
+
+  @override
+  String get generateWeekLabel => 'Planificar la semana';
+
+  @override
+  String get generateWeekSubtitle =>
+      'La IA creará un menú con desayuno, comida y cena para toda la semana';
+
+  @override
+  String get generatingMenu => 'Generando menú...';
+
+  @override
+  String get weekPlannedLabel => 'Semana planificada';
 }

client/lib/l10n/app_localizations_fr.dart

@@ -358,8 +358,21 @@ class AppLocalizationsFr extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => 'Marquer comme mangé';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => 'Planifié';
+
+  @override
+  String get generateWeekLabel => 'Planifier la semaine';
+
+  @override
+  String get generateWeekSubtitle =>
+      'L\'IA créera un menu avec petit-déjeuner, déjeuner et dîner pour toute la semaine';
+
+  @override
+  String get generatingMenu => 'Génération du menu...';
+
+  @override
+  String get weekPlannedLabel => 'Semaine planifiée';
 }

client/lib/l10n/app_localizations_hi.dart

@@ -356,8 +356,21 @@ class AppLocalizationsHi extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => 'खाया हुआ चिह्नित करें';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => 'नियोजित';
+
+  @override
+  String get generateWeekLabel => 'सप्ताह की योजना बनाएं';
+
+  @override
+  String get generateWeekSubtitle =>
+      'AI पूरे सप्ताह के लिए नाश्ता, दोपहर का खाना और रात के खाने के साथ मेनू बनाएगा';
+
+  @override
+  String get generatingMenu => 'मेनू बना रहे हैं...';
+
+  @override
+  String get weekPlannedLabel => 'सप्ताह की योजना बनाई गई';
 }

client/lib/l10n/app_localizations_it.dart

@@ -357,8 +357,21 @@ class AppLocalizationsIt extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => 'Segna come mangiato';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => 'Pianificato';
+
+  @override
+  String get generateWeekLabel => 'Pianifica la settimana';
+
+  @override
+  String get generateWeekSubtitle =>
+      'L\'AI creerà un menu con colazione, pranzo e cena per tutta la settimana';
+
+  @override
+  String get generatingMenu => 'Generazione menu...';
+
+  @override
+  String get weekPlannedLabel => 'Settimana pianificata';
 }

client/lib/l10n/app_localizations_ja.dart

@@ -354,8 +354,20 @@ class AppLocalizationsJa extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => '食べた印をつける';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => '予定済み';
+
+  @override
+  String get generateWeekLabel => '週を計画する';
+
+  @override
+  String get generateWeekSubtitle => 'AIが一週間の朝食・昼食・夕食のメニューを作成します';
+
+  @override
+  String get generatingMenu => 'メニューを生成中...';
+
+  @override
+  String get weekPlannedLabel => '週の計画済み';
 }

client/lib/l10n/app_localizations_ko.dart

@@ -354,8 +354,20 @@ class AppLocalizationsKo extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => '먹은 것으로 표시';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => '계획됨';
+
+  @override
+  String get generateWeekLabel => '주간 계획하기';
+
+  @override
+  String get generateWeekSubtitle => 'AI가 한 주 동안 아침, 점심, 저녁 식사 메뉴를 만들어 드립니다';
+
+  @override
+  String get generatingMenu => '메뉴 생성 중...';
+
+  @override
+  String get weekPlannedLabel => '주간 계획 완료';
 }

client/lib/l10n/app_localizations_pt.dart

@@ -357,8 +357,21 @@ class AppLocalizationsPt extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => 'Marcar como comido';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => 'Planejado';
+
+  @override
+  String get generateWeekLabel => 'Planejar a semana';
+
+  @override
+  String get generateWeekSubtitle =>
+      'A IA criará um menu com café da manhã, almoço e jantar para a semana inteira';
+
+  @override
+  String get generatingMenu => 'Gerando menu...';
+
+  @override
+  String get weekPlannedLabel => 'Semana planejada';
 }

client/lib/l10n/app_localizations_ru.dart

@@ -359,4 +359,17 @@ class AppLocalizationsRu extends AppLocalizations {
 
   @override
   String get plannedMealLabel => 'Запланировано';
+
+  @override
+  String get generateWeekLabel => 'Запланировать неделю';
+
+  @override
+  String get generateWeekSubtitle =>
+      'AI составит меню с завтраком, обедом и ужином на всю неделю';
+
+  @override
+  String get generatingMenu => 'Генерируем меню...';
+
+  @override
+  String get weekPlannedLabel => 'Неделя запланирована';
 }

client/lib/l10n/app_localizations_zh.dart

@@ -354,8 +354,20 @@ class AppLocalizationsZh extends AppLocalizations {
   }
 
   @override
-  String get markAsEaten => '';
+  String get markAsEaten => '标记为已吃';
 
   @override
-  String get plannedMealLabel => '';
+  String get plannedMealLabel => '已计划';
+
+  @override
+  String get generateWeekLabel => '规划本周';
+
+  @override
+  String get generateWeekSubtitle => 'AI将为整周创建含早餐、午餐和晚餐的菜单';
+
+  @override
+  String get generatingMenu => '正在生成菜单...';
+
+  @override
+  String get weekPlannedLabel => '本周已规划';
 }

client/lib/l10n/app_pt.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "Marcar como comido",
+  "plannedMealLabel": "Planejado",
+  "generateWeekLabel": "Planejar a semana",
+  "generateWeekSubtitle": "A IA criará um menu com café da manhã, almoço e jantar para a semana inteira",
+  "generatingMenu": "Gerando menu...",
+  "weekPlannedLabel": "Semana planejada"
 }

client/lib/l10n/app_ru.arb

@@ -129,5 +129,9 @@
     }
   },
   "markAsEaten": "Отметить как съеденное",
-  "plannedMealLabel": "Запланировано"
+  "plannedMealLabel": "Запланировано",
+  "generateWeekLabel": "Запланировать неделю",
+  "generateWeekSubtitle": "AI составит меню с завтраком, обедом и ужином на всю неделю",
+  "generatingMenu": "Генерируем меню...",
+  "weekPlannedLabel": "Неделя запланирована"
 }

client/lib/l10n/app_zh.arb

@@ -130,6 +130,10 @@
       "date": { "type": "String" }
     }
   },
-  "markAsEaten": "",
-  "plannedMealLabel": ""
+  "markAsEaten": "标记为已吃",
+  "plannedMealLabel": "已计划",
+  "generateWeekLabel": "规划本周",
+  "generateWeekSubtitle": "AI将为整周创建含早餐、午餐和晚餐的菜单",
+  "generatingMenu": "正在生成菜单...",
+  "weekPlannedLabel": "本周已规划"
 }