refactor: clean up imports and remove trailing whitespace in multiple files

backend/app/api/agent.py

@@ -21,7 +21,12 @@ from app.core.time import utcnow
 from app.db.pagination import paginate
 from app.db.session import get_session
 from app.integrations.openclaw_gateway import GatewayConfig as GatewayClientConfig
-from app.integrations.openclaw_gateway import OpenClawGatewayError, ensure_session, openclaw_call, send_message
+from app.integrations.openclaw_gateway import (
+    OpenClawGatewayError,
+    ensure_session,
+    openclaw_call,
+    send_message,
+)
 from app.models.activity_events import ActivityEvent
 from app.models.agents import Agent
 from app.models.approvals import Approval

backend/app/api/souls_directory.py

@@ -71,4 +71,3 @@ async def get_markdown(
     except Exception as exc:
         raise HTTPException(status_code=status.HTTP_502_BAD_GATEWAY, detail=str(exc)) from exc
     return SoulsDirectoryMarkdownResponse(handle=safe_handle, slug=safe_slug, content=content)
-

backend/app/schemas/souls_directory.py

@@ -18,4 +18,3 @@ class SoulsDirectoryMarkdownResponse(BaseModel):
     handle: str
     slug: str
     content: str
-

backend/tests/test_souls_directory.py

@@ -26,4 +26,3 @@ def test_search_souls_matches_handle_or_slug() -> None:
     ]
     assert search_souls(refs, query="writer", limit=20) == [refs[1]]
     assert search_souls(refs, query="thedaviddias", limit=20) == [refs[0], refs[1]]
-