chore: fix all ruff lint errors + format — 0 errors, 306 tests pass

app/routes/tenants.py

@@ -4,7 +4,7 @@ from __future__ import annotations
 
 import uuid
 
-from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi import APIRouter, Depends, HTTPException
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.core.db import get_db
@@ -51,7 +51,9 @@ async def list_tenant_users(
     try:
         tid = uuid.UUID(tenant_id)
     except ValueError:
-        raise HTTPException(400, detail={"detail": "Invalid tenant_id", "code": "invalid_id"})
+        raise HTTPException(
+            400, detail={"detail": "Invalid tenant_id", "code": "invalid_id"}
+        ) from None
 
     users = await tenant_service.list_tenant_users(db, tid)
     return {"items": users}
@@ -69,7 +71,7 @@ async def assign_user_to_tenant(
         tid = uuid.UUID(tenant_id)
         uid = uuid.UUID(body.user_id)
     except ValueError:
-        raise HTTPException(400, detail={"detail": "Invalid ID", "code": "invalid_id"})
+        raise HTTPException(400, detail={"detail": "Invalid ID", "code": "invalid_id"}) from None
 
-    ut = await tenant_service.assign_user_to_tenant(db, tid, uid)
+    await tenant_service.assign_user_to_tenant(db, tid, uid)
     return {"message": "User assigned to tenant"}