feat: add get_current_user and require_admin dependencies

app/modules/auth/dependencies.py

@@ -0,0 +1,32 @@
+from fastapi import Depends, HTTPException, Request
+from sqlalchemy.orm import Session
+
+from app.core.auth import decode_token, get_token_from_request
+from app.core.database import get_db
+from app.modules.auth.models import User
+from app.modules.auth.service import get_user
+
+
+class RequiresLoginException(Exception):
+    pass
+
+
+async def get_current_user(
+    request: Request, db: Session = Depends(get_db)
+) -> User:
+    token = get_token_from_request(request)
+    if not token:
+        raise RequiresLoginException()
+    payload = decode_token(token)
+    if not payload:
+        raise RequiresLoginException()
+    user = get_user(db, payload.get("sub", ""))
+    if user is None or not user.is_active:
+        raise RequiresLoginException()
+    return user
+
+
+async def require_admin(user: User = Depends(get_current_user)) -> User:
+    if not user.is_admin:
+        raise HTTPException(status_code=403, detail="Admin access required")
+    return user