fix: restore CLI compat and unblock auto-recall latency

[a410979729-sys]

Summary

• restore OpenClaw 2026.4.24 CLI compatibility by adding explicit cli-metadata support and compat runtime registrations
• keep auto-recall on a lightweight BM25-only path, thread cancellation signals through retrieval, and abort timed-out work
• stop prompt-build from doing synchronous metadata writes, and make startup retrieval checks local/lightweight instead of provider-latency sensitive
• update regression harnesses/tests for the newer plugin API hooks and before_reset behavior

Testing

• npm test

[rwmjhb]

Review action: COMMENT

Thanks for the PR. GitHub currently reports this branch as not mergeable (mergeable=CONFLICTING, merge_state_status=DIRTY), so I am deferring deep review until the diff can be reviewed against the current base.

Please rebase onto the latest base branch, resolve the merge conflicts, and push the updated branch. Once it is cleanly mergeable again, I will re-run the full review on the updated diff.