"feat: Implement database backup for myp.db-shm and myp.db-wal, add myp.db.backup_20250529_185343"

backend/app/utils/database_schema_migration.py

@@ -10,13 +10,27 @@ import sqlite3
 from datetime import datetime
 import logging
 
-# Pfad zur App hinzufügen
-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+# Pfad zur App hinzufügen - KORRIGIERT
+app_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, app_dir)
 
+# Alternative Datenbankpfad-Definition falls Import fehlschlägt
+DATABASE_PATH = None
+try:
     from config.settings import DATABASE_PATH
-from utils.logging_config import get_logger
+except ImportError:
+    # Fallback: Datenbankpfad manuell setzen
+    DATABASE_PATH = os.path.join(app_dir, "database", "myp.db")
+    print(f"⚠️ Fallback: Verwende Datenbankpfad: {DATABASE_PATH}")
 
+# Logging-Setup mit Fallback
+try:
+    from utils.logging_config import get_logger
     logger = get_logger("schema_migration")
+except ImportError:
+    # Fallback: Standard-Logging
+    logging.basicConfig(level=logging.INFO)
+    logger = logging.getLogger("schema_migration")
 
 def get_table_columns(cursor, table_name):
     """Ermittelt alle Spalten einer Tabelle."""