chore: merge upstream v12.3.1 + keep local fixes

Upstream brings:
- 12.2.1: Break infinite summary-retry loop (#2072)
- 12.2.2: Subagent observation labeling + schema migration (#2073)
- 12.2.3: Silence parser warning on normal observation responses (#2074)
- 12.3.0: Docker harness + SWE-bench eval harness (#2076)
- 12.3.1: Error handling anti-pattern cleanup across 91 files (#2078)

Local fixes preserved through merge:
- env-sanitizer PATH extension for claude CLI lookup
- SessionStore stale session reset (mac sleep / 4h wall-clock)

Built artifacts rebuilt from merged sources; fixes verified present
in worker-service.cjs.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
JOUNGWOOK KWON
2026-04-20 13:33:47 +09:00
133 changed files with 8672 additions and 4000 deletions
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