Remove migration code and alembic dependency

src/server/api/auth.py

@@ -31,7 +31,6 @@ async def setup_auth(req: SetupRequest):
     
     This endpoint also initializes the configuration with default values
     and saves the anime directory and master password hash.
-    If anime_directory is provided, runs migration for existing data files.
     """
     if auth_service.is_configured():
         raise HTTPException(

src/server/api/config.py

@@ -214,14 +214,14 @@ def update_advanced_config(
 async def update_directory(
     directory_config: Dict[str, str], auth: dict = Depends(require_auth)
 ) -> Dict[str, Any]:
-    """Update anime directory configuration and run migration.
+    """Update anime directory configuration.
 
     Args:
         directory_config: Dictionary with 'directory' key
         auth: Authentication token (required)
 
     Returns:
-        Success message with optional migration results
+        Success message
     """
     try:
         directory = directory_config.get("directory")

src/server/database/README.md

@@ -13,7 +13,7 @@ This package provides persistent storage for anime series, episodes, download qu
 Install required dependencies:
 
 ```bash
-pip install sqlalchemy alembic aiosqlite
+pip install sqlalchemy aiosqlite
 ```
 
 Or use the project requirements:
@@ -163,24 +163,6 @@ from src.config.settings import settings
 settings.database_url = "sqlite:///./data/aniworld.db"
 ```
 
-## Migrations (Future)
-
-Alembic is installed for database migrations:
-
-```bash
-# Initialize Alembic
-alembic init alembic
-
-# Generate migration
-alembic revision --autogenerate -m "Description"
-
-# Apply migrations
-alembic upgrade head
-
-# Rollback
-alembic downgrade -1
-```
-
 ## Testing
 
 Run database tests:
@@ -196,7 +178,6 @@ The test suite uses an in-memory SQLite database for isolation and speed.
 -   **base.py**: Base declarative class and mixins
 -   **models.py**: SQLAlchemy ORM models (4 models)
 -   **connection.py**: Engine, session factory, dependency injection
--   **migrations.py**: Alembic migration placeholder
 -   ****init**.py**: Package exports
 -   **service.py**: Service layer with CRUD operations
 
@@ -432,5 +413,4 @@ Solution: Ensure referenced records exist before creating relationships.
 ## Further Reading
 
 -   [SQLAlchemy 2.0 Documentation](https://docs.sqlalchemy.org/en/20/)
--   [Alembic Tutorial](https://alembic.sqlalchemy.org/en/latest/tutorial.html)
 -   [FastAPI with Databases](https://fastapi.tiangolo.com/tutorial/sql-databases/)

src/server/database/init.py

@@ -313,7 +313,6 @@ async def get_schema_version(engine: Optional[AsyncEngine] = None) -> str:
     """Get current database schema version.
     
     Returns version string based on existing tables and structure.
-    For production, consider using Alembic versioning.
     
     Args:
         engine: Optional database engine (uses default if not provided)

src/server/fastapi_app.py

@@ -51,7 +51,7 @@ async def lifespan(app: FastAPI):
     try:
         logger.info("Starting FastAPI application...")
         
-        # Initialize database first (required for migration and other services)
+        # Initialize database first (required for other services)
         try:
             from src.server.database.connection import init_db
             await init_db()

src/server/services/config_service.py

@@ -4,7 +4,7 @@ This service handles:
 - Loading and saving configuration to JSON files
 - Configuration validation
 - Backup and restore functionality
-- Configuration migration for version updates
+- Configuration version management
 """
 
 import json
@@ -35,8 +35,8 @@ class ConfigBackupError(ConfigServiceError):
 class ConfigService:
     """Service for managing application configuration persistence.
     
-    Handles loading, saving, validation, backup, and migration of
-    configuration files. Uses JSON format for human-readable and
+    Handles loading, saving, validation, backup, and version management
+    of configuration files. Uses JSON format for human-readable and
     version-control friendly storage.
     """
     
@@ -84,11 +84,6 @@ class ConfigService:
             with open(self.config_path, "r", encoding="utf-8") as f:
                 data = json.load(f)
             
-            # Check if migration is needed
-            file_version = data.get("version", "1.0.0")
-            if file_version != self.CONFIG_VERSION:
-                data = self._migrate_config(data, file_version)
-            
             # Remove version key before constructing AppConfig
             data.pop("version", None)
             
@@ -328,26 +323,6 @@ class ConfigService:
             except (OSError, IOError):
                 # Ignore errors during cleanup
                 continue
-    
-    def _migrate_config(
-        self, data: Dict, from_version: str  # noqa: ARG002
-    ) -> Dict:
-        """Migrate configuration from old version to current.
-        
-        Args:
-            data: Configuration data to migrate
-            from_version: Version to migrate from (reserved for future use)
-            
-        Returns:
-            Dict: Migrated configuration data
-        """
-        # Currently only one version exists
-        # Future migrations would go here
-        # Example:
-        # if from_version == "1.0.0" and self.CONFIG_VERSION == "2.0.0":
-        #     data = self._migrate_1_0_to_2_0(data)
-        
-        return data
 
 
 # Singleton instance