Fix: Use absolute path /app/data for SQLite in Docker

app/database.py

@@ -21,13 +21,25 @@ class Base(DeclarativeBase):
     pass
 
 
-# Async session factory
+# Create data directory at module load time (before any engine connection)
-async_engine = create_async_engine(DATABASE_URL, echo=False)
+DATA_DIR = Path("/app/data")
+DATA_DIR.mkdir(parents=True, exist_ok=True)
+
+# Async session factory - URL uses absolute path to /app/data
+async_engine = create_async_engine(
+    f"sqlite+aiosqlite:///{DATA_DIR}/claudia_docs.db",
+    echo=False,
+    connect_args={"check_same_thread": False}
+)
 AsyncSessionLocal = async_sessionmaker(async_engine, class_=AsyncSession, expire_on_commit=False)
 
 
 # Sync engine for migrations
-sync_engine = create_engine(SYNC_DATABASE_URL, echo=False)
+sync_engine = create_engine(
+    f"sqlite:///{DATA_DIR}/claudia_docs.db",
+    echo=False,
+    connect_args={"check_same_thread": False}
+)
 SyncSessionLocal = sessionmaker(sync_engine)
 
 
@@ -51,8 +63,7 @@ async def get_db_simple():
 
 async def init_db():
     """Initialize database with all tables, views, FTS5, and triggers."""
-    # Create data directory
+    # Data directory already created at module load time
-    Path("./data").mkdir(exist_ok=True)
 
     async with async_engine.begin() as conn:
         # Create all tables via SQL (not ORM) to handle SQLite-specific features