style: fix yapf formatting - single-line raise and scan call

- _policy.py: raise ValueError(...) single-line (was multi-line, yapf
  forces single-line when under column_limit)
- test_tool_filter.py: SafetyScanner.scan(ScanInput(...)) single-line
  (merged multi-line call, 107 chars < 120 limit)

Author: Violet2314

tests/tool_safety/test_tool_filter.py

@@ -153,8 +153,7 @@ def test_filter_contextvar_does_not_leak_across_calls(tmp_path: Path):
     async def _scenario():
         # Prime the ContextVar with a stale report as if a prior _after was
         # skipped in this same async context.
-        stale_report = SafetyScanner(PolicyConfig()).scan(
-            ScanInput(script="sleep 100 &", language="bash"))
+        stale_report = SafetyScanner(PolicyConfig()).scan(ScanInput(script="sleep 100 &", language="bash"))
         assert stale_report.decision.value == "needs_human_review"
         _REVIEW_REPORT.set(stale_report)
 

trpc_agent_sdk/safety/_policy.py

@@ -171,6 +171,4 @@ def _parse_risk_level(value: Any, default: RiskLevel) -> RiskLevel:
         # default would let users believe a stricter policy is active when it
         # is not. List valid values so the error is actionable.
         valid = [r.value for r in RiskLevel]
-        raise ValueError(
-            f"invalid risk level {value!r}; expected one of {valid}"
-        ) from ex
+        raise ValueError(f"invalid risk level {value!r}; expected one of {valid}") from ex