feat(openclaw): surface gatewayLogLevel from openclaw.json (#5060)

[vivekchand]

Summary

Operators couldn't tell from the ClawMetry dashboard why lower-severity events were absent from the tailed gateway log. The _gateway_log_meta() function already surfaced log dir, archive count, and current file size — but silently omitted the configured minimum file-log level from openclaw.json.

This adds gatewayLogLevel to the metadata dict when logging.level is set in openclaw.json.

Changes

• clawmetry/adapters/openclaw.py: Add _read_logging_level_config() helper (mirrors the existing _read_logging_file_config() pattern — same OPENCLAW_HOME fallback, ~/.clawdbot alt path, graceful empty-string return, never raises). Call it in _gateway_log_meta() and propagate the result as gatewayLogLevel when non-empty.
• tests/test_obs_gap_logging_level_5060.py: 8 tests covering _read_logging_level_config() (present/absent/malformed config, case normalisation) and _gateway_log_meta() level propagation (included when configured, omitted when not).

Test plan

• python3 -m pytest tests/test_obs_gap_logging_level_5060.py -q — all 8 pass (verified locally)
• python3 -c 'import ast; ast.parse(open("clawmetry/adapters/openclaw.py").read())' — syntax OK (verified)
• Smoke: set {"logging": {"level": "warn"}} in openclaw.json, restart ClawMetry, confirm gatewayLogLevel: "warn" appears in the detect/health JSON response

Bot meta

Draft PR opened autonomously based on the plan in #5060. Marked draft for human review — mark Ready for Review once happy.

Closes #5060

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Generated by Claude Code

[vivekchand]

Autonomous maintainer pass (2026-08-22): draft assessment.

Code quality: clean. _read_logging_level_config() is an exact structural match to _read_logging_file_config() (same OPENCLAW_HOME env fallback, same ~/.clawdbot alt-path, same never-raises contract). Integration in _gateway_log_meta() is minimal and correct (3 lines, omits key when empty). 8 tests cover present/absent/malformed config, case normalisation, and _gateway_log_meta() propagation.

CI: 26/27 checks complete, all green. One still running: "Entitlement API tests" (started 06:29 UTC — this check ran ~12 min on the previous PR and passed; no entitlement code changes in this PR).

Recommendation: once "Entitlement API tests" completes green, this is ready to mark ready-for-review and merge. No conflicts with the other open PR (#5055 touches different files). Value is clear — operators can now see gatewayLogLevel in the health/detect response and understand why low-severity events are absent from the gateway log.

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Generated by Claude Code

[8090-software-factory]

✅ Drift Bot (ClawMetry): no drift detected

Drift Bot analyzed the changed files against this project's blueprints and requirements and found no drift.