run_job() ignored the result's `failed=True` / `completed=False` flags
that agent.run_conversation populates on API exhaustion, mid-run
interrupts, and model aborts. Because final_response on those paths is
often a non-empty error string ("API call failed after 3 retries:
Request timed out."), the existing empty-response soft-fail in
_process_job did not trip either: the error text was delivered as if it
were the agent's reply and last_status was set to "ok" with no error
notification. Detect those flags right after the dict-shape guard and
raise so the existing except handler builds the proper failure tuple,
preserving the agent's error message via result["error"].
Adds a parametrized regression covering: API-retry-exhausted with error
text in final_response, completed=False with no final_response,
completed=False without an explicit failed flag, and the partial-reply
plus failed=True case. Plus a guard that a normal completed=True success
result is still treated as success.
Fixes#17855
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
f54935738c