feat(obs): surface OpenClaw 2026.9.3 update-pipeline state in adapter (#5749)

[vivekchand]

Summary

OpenClaw 2026.9.3's safer-update pipeline rehearses core/plugin changes in isolated candidate state before activation and can recover abandoned update records without stopping a healthy Gateway. These state transitions were logged by the Gateway but invisible to ClawMetry — an agent stuck in a half-activated or abandoned update state showed no signal on health surfaces.

This PR adds a targeted gateway-event scanner for update-pipeline state, following the exact same pattern as the 2026.9.1/2 scanners landed in #5547, #5548, and #5618.

Changes

• clawmetry/adapters/openclaw.py: add _openclaw_update_pipeline_state(events) — scans already-fetched gateway log events for candidate-state transitions (candidate + update/activat), abandoned-update recovery (abandon + update/recover), and activation events (activation + update). Returns updatePipelineStateDetected, optionally updatePipelineCandidateState, updatePipelineAbandoned, updatePipelineMsg, updatePipelineTs. Wired into detect() immediately after the _backup_outcome_events call.
• tests/test_obs_gap_openclaw_update_pipeline_5749.py: 13 regression tests — candidate-state, abandoned-recovery, both-in-session, activation keyword, no-match, empty list, None msg, missing ts field, exception safety (None + non-list), and non-interference with the existing migration-warning scanner.

Test plan

• python3 -m pytest tests/test_obs_gap_openclaw_update_pipeline_5749.py -v — 13 passed
• python3 -c 'import ast; ast.parse(open("clawmetry/adapters/openclaw.py").read())' — syntax OK
• Confirm updatePipelineStateDetected surfaces in /api/overview meta when a 2026.9.3 Gateway logs a candidate or abandoned-update event

Bot meta

Draft PR opened autonomously based on the plan in #5749. Marked draft for human review — mark Ready for Review once happy.

No-PRD: autofix bot implementing harness-gap issue #5749, which was filed by the automated audit script; the audit finding itself is the product record for this observability addition

Closes #5749

🤖 Generated with Claude Code

https://claude.ai/code/session_01Ge18wEETZ88yfsvaxF7J5a

[vivekchand]

Bot note: tests/test_obs_gap_openclaw_update_pipeline_5749.py needs to be added to the explicit test file list in .github/workflows/ci.yml (per CLAUDE.md — CI runs file lists, not pytest tests/). The bot cannot touch workflow files, so this one line needs a human touch before the test is executed in CI. The test runs and passes locally (python3 -m pytest tests/test_obs_gap_openclaw_update_pipeline_5749.py -v, 13 passed).

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