added encryption

backend/routers/users.py

@@ -14,7 +14,7 @@ router = APIRouter()
 async def register_user(user_data: UserCreate):
     """
     Register or get user (idempotent).
-    
+
     Uses upsert pattern to ensure one user per email.
     If user already exists, returns existing user.
     Called after Firebase Google Auth on frontend.
@@ -43,7 +43,8 @@ async def register_user(user_data: UserCreate):
         # Fetch the user (either newly created or existing)
         user = db.users.find_one({"email": user_data.email})
         if not user:
-            raise HTTPException(status_code=500, detail="Failed to retrieve user after upsert")
+            raise HTTPException(
+                status_code=500, detail="Failed to retrieve user after upsert")
 
         return {
             "id": str(user["_id"]),
@@ -56,7 +57,8 @@ async def register_user(user_data: UserCreate):
             "message": "User registered successfully" if result.upserted_id else "User already exists"
         }
     except Exception as e:
-        raise HTTPException(status_code=500, detail=f"Registration failed: {str(e)}")
+        raise HTTPException(
+            status_code=500, detail=f"Registration failed: {str(e)}")
 
 
 @router.get("/by-email/{email}", response_model=dict)
@@ -79,7 +81,8 @@ async def get_user_by_email(email: str):
             "updatedAt": user["updatedAt"].isoformat()
         }
     except Exception as e:
-        raise HTTPException(status_code=500, detail=f"Failed to fetch user: {str(e)}")
+        raise HTTPException(
+            status_code=500, detail=f"Failed to fetch user: {str(e)}")
 
 
 @router.get("/{user_id}", response_model=dict)
@@ -103,8 +106,10 @@ async def get_user_by_id(user_id: str):
         }
     except Exception as e:
         if "invalid ObjectId" in str(e).lower():
-            raise HTTPException(status_code=400, detail="Invalid user ID format")
-        raise HTTPException(status_code=500, detail=f"Failed to fetch user: {str(e)}")
+            raise HTTPException(
+                status_code=400, detail="Invalid user ID format")
+        raise HTTPException(
+            status_code=500, detail=f"Failed to fetch user: {str(e)}")
 
 
 @router.put("/{user_id}", response_model=dict)
@@ -139,7 +144,8 @@ async def update_user(user_id: str, user_data: UserUpdate):
         }
     except Exception as e:
         if "invalid ObjectId" in str(e).lower():
-            raise HTTPException(status_code=400, detail="Invalid user ID format")
+            raise HTTPException(
+                status_code=400, detail="Invalid user ID format")
         raise HTTPException(status_code=500, detail=f"Update failed: {str(e)}")
 
 
@@ -164,8 +170,10 @@ async def delete_user(user_id: str):
         }
     except Exception as e:
         if "invalid ObjectId" in str(e).lower():
-            raise HTTPException(status_code=400, detail="Invalid user ID format")
-        raise HTTPException(status_code=500, detail=f"Deletion failed: {str(e)}")
+            raise HTTPException(
+                status_code=400, detail="Invalid user ID format")
+        raise HTTPException(
+            status_code=500, detail=f"Deletion failed: {str(e)}")
 
         # Delete all entries by user
         db.entries.delete_many({"userId": user_id})