Record which inputs a run's caller passed, and mark defaults from it

`Run.passed` (migration d5a3c8e1f246) keeps the names the caller chose, so
the run detail and the comparison table can mark a value as the flow's own
again; rows from before it fall back to the names their params lack. Retries
hand on their parent's list, imports record their entry's.

Also: a cancel of a queued run no longer leaves its id in `_cancelled`, a
linked comparison no longer crashes before the list loads, and the pre-commit
failures are fixed (stale client, `text-[10px]`, worker formatting).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013GAeg4Jo6xjZzjwy9QDWMQ

backend/tests/api/routes/test_runs.py

@@ -454,6 +454,8 @@ def test_a_run_records_the_inputs_it_actually_starts_from():
         spelled = service.submit("study", {"lr": 0.01, "epochs": 5})
         made.append(spelled.id)
         assert spelled.params_digest == defaulted.params_digest
+        # Only what the caller chose says which value was the flow's own.
+        assert (defaulted.passed, spelled.passed) == (["epochs"], ["epochs", "lr"])
     finally:
         with Session(db_engine) as session:
             for run in session.exec(select(Run).where(col(Run.id).in_(made))).all():