[P2.14] Reconciliation thread leaks (batch stuck RUNNING) when execution raises — `stop_event.set()` not in `finally`

[frankbria]

Severity: medium | Category: correctness | Phase: P2.14

Problem

_execute_serial/_execute_parallel call reconcile_stop.set() only on the success path; a worker exception (e.g. create_execution_context failing) leaks the 30s-polling daemon thread and leaves the batch row RUNNING forever in the long-lived server.

Evidence

codeframe/core/conductor.py:1583

Acceptance criteria

reconcile_stop.set() moved into finally; unexpected worker exceptions mark the batch FAILED.

Dependencies

None

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_{Filed from the SaaS launch-readiness audit. Atomic: one developer, one session. Work order: strictly P0.1 → P3.12 (no forward dependencies).}

[coderabbitai]

🔗 Related PRs

#425 - feat(core): wire StallAction dispatch into ReactAgent and runtime (#401) [merged]
#439 - feat(core): continuous reconciliation during batch execution [merged]

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