Telegram approval-aware task lane + promotion consistency

[srxly888-creator]

Summary

This PR promotes the current Telegram task lane from patch-oriented execution to an approval-aware flow with consistent promotion state across Telegram, admin, and runtime artifacts.

It also closes a key control-plane gap after worker failures and adds step-level promotion observability for easier diagnosis of intermittent promotion failures.

Included changes

• fix terminal-state closure after worker failures
• make Telegram /task approval-aware
• reconcile promotion state across Telegram/admin/runtime
• add promotion step trace summaries for promotion internals

Key behavior changes

• /task <request> now defaults to an approval-aware path
• /task patch <request> explicitly stays patch-only
• ready_for_promotion transitions into awaiting_approval
• /approve <approval_id> approve promotes the task and can create a Draft PR
• repeated approval on the same approval id is idempotent
• promotion success/failure is projected consistently across:
  • Telegram
  • manager dispatch state
  • admin audit trail
  • runtime artifacts

Reliability improvements

• terminal summary.json is forced even when post-processing fails after driver_result.json is written
• manager falls back to runtime artifacts to reconcile terminal run state
• promotion diagnostics now include step-level trace and summary for:
  • create_branch
  • apply_patch
  • validator
  • commit
  • push
  • create_pr

Validation

Targeted regression suites

• runner outcomes
• manager agent
• Telegram gateway
• admin backend
• git promotion gate

Live E2E

Validated end-to-end flow:

/task -> awaiting_approval -> /approve -> draft_pr_created

Observed in live run:

• approval-aware task flow reached awaiting_approval
• approval created a promotion run
• promotion created a Draft PR
• Telegram, manager, and admin reflected the same final promoted state
• repeated approval did not create a second promotion

Commits included

• 69a7b26 fix(manager): close terminal runs after worker failures
• 0ab0fa6 feat(telegram): make /task approval-aware
• 695b1a8 Add consistent promotion state reconciliation
• 150fc0a Add promotion step trace summaries

Rollout note

Please test from branch codex/pr3-promotion-state-consistency and do not validate directly on main.