feat: add data source

backend/app/schemas/datasource.py

@@ -0,0 +1,28 @@
+from pydantic import BaseModel, Field
+from typing import Dict, Any, Optional
+from datetime import datetime
+
+class DataSourceBase(BaseModel):
+    name: str
+    type: str  # sqlite, postgres, clickhouse, supabase, parquet
+    config: Dict[str, Any]
+
+class DataSourceCreate(DataSourceBase):
+    pass
+
+class DataSourceUpdate(BaseModel):
+    name: Optional[str] = None
+    type: Optional[str] = None
+    config: Optional[Dict[str, Any]] = None
+
+class DataSource(DataSourceBase):
+    id: int
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        from_attributes = True
+
+class DataSourceTestRequest(BaseModel):
+    type: str
+    config: Dict[str, Any]