feat: parametres - filtres contenu, categories, repertoire (#9, #10, #11, #12)

- Filtre recommandations (all/anime/series)
- Filtre dernieres sorties (all/anime/series)
- Toggle categories anime/series (min 1 active)
- Repertoire de telechargement personnalisable
- Migration automatique des nouvelles colonnes SQLite
- Template settings avec tous les nouveaux controles
- Validation cote backend (400 si les deux categories desactivees)

Closes #9, Closes #10, Closes #11, Closes #12

app/models/settings.py

@@ -14,6 +14,19 @@ class AppSettingsBase(SQLModel):
     
     # Store list of disabled providers as a JSON string
     disabled_providers_json: str = Field(default="[]", sa_column=Column(String))
+
+    # #9: Filter for recommendations section ("all", "anime", "series")
+    recommendations_filter: str = Field(default="all", sa_column=Column(String))
+
+    # #10: Filter for latest releases section ("all", "anime", "series")
+    releases_filter: str = Field(default="all", sa_column=Column(String))
+
+    # #11: Enable/disable categories
+    anime_enabled: bool = Field(default=True)
+    series_enabled: bool = Field(default=True)
+
+    # #12: Custom download directory
+    download_dir: str = Field(default="downloads")
     
     @property
     def disabled_providers(self) -> List[str]:
@@ -46,6 +59,11 @@ class AppSettings(BaseModel):
     default_lang: str = "vostfr"
     theme: str = "dark"
     disabled_providers: List[str] = []
+    recommendations_filter: str = "all"
+    releases_filter: str = "all"
+    anime_enabled: bool = True
+    series_enabled: bool = True
+    download_dir: str = "downloads"
     
     class Config:
         from_attributes = True
@@ -56,3 +74,8 @@ class AppSettingsUpdate(BaseModel):
     default_lang: Optional[str] = None
     theme: Optional[str] = None
     disabled_providers: Optional[List[str]] = None
+    recommendations_filter: Optional[str] = None
+    releases_filter: Optional[str] = None
+    anime_enabled: Optional[bool] = None
+    series_enabled: Optional[bool] = None
+    download_dir: Optional[str] = None