feat: add backend FastAPI structure and Supabase schema

server/app/core/dependencies.py

@@ -0,0 +1,36 @@
+from fastapi import HTTPException, Depends, status
+from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
+import jwt
+
+from app.core.config import settings
+from app.db.database import get_connection
+
+security = HTTPBearer()
+
+def get_current_user(credentials: HTTPAuthorizationCredentials = Depends(security)):
+    token = credentials.credentials
+    try:
+        payload = jwt.decode(
+            token, 
+            settings.secret_key, 
+            algorithms=[settings.algorithm]
+        )
+        user_id = payload.get("sub")
+        if user_id is None:
+            raise HTTPException(status_code=401, detail="Invalid token")
+        
+        conn = get_connection()
+        user = conn.execute(
+            "SELECT id, email, phone FROM users WHERE id = ?",
+            (user_id,)
+        ).fetchone()
+        conn.close()
+        
+        if user is None:
+            raise HTTPException(status_code=401, detail="User not found")
+        
+        return dict(user)
+    except jwt.ExpiredSignatureError:
+        raise HTTPException(status_code=401, detail="Token expired")
+    except jwt.InvalidTokenError:
+        raise HTTPException(status_code=401, detail="Invalid token")