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* test(scanner): cover bucket drive guard lifecycle Co-Authored-By: heihutu <[email protected]> * fix(scanner): recover usage floor from fenced backups Co-Authored-By: heihutu <[email protected]> * fix(scanner): retry transient activity probes Retry one failed scanner activity probe after a bounded reconnect when the failure is transport-like or timed out. Keep protocol and response validation failures fail-closed. Co-Authored-By: heihutu <[email protected]> * fix(scanner): retain post-scan observations Preserve a complete scanner walk as a non-converged observation when the final activity probe is unavailable. Advance the cycle as partial without acknowledging dirty usage.\n\nCo-Authored-By: heihutu <[email protected]> * fix(scanner): classify publication lease deferrals Distinguish persistence budget and lease deadline deferrals from unavailable activity baselines, and ensure lease-gate deferrals update usage metrics. Keep the fixed lease gate fail-closed while storage-owned commit scope work remains pending. Co-Authored-By: heihutu <[email protected]> * fix(scanner): recover usage floor from fenced backups Co-Authored-By: heihutu <[email protected]> * fix(scanner): preserve publication lease defer reasons Keep lease expiry and release failures distinct from activity baseline failures so scanner freshness metrics and cycle outcomes identify the publication barrier that blocked progress. Preserve fail-closed behavior. Co-Authored-By: heihutu <[email protected]> * fix(scanner): reuse recovered usage baseline for publication Co-Authored-By: heihutu <[email protected]> * fix(scanner): fence legacy usage floor fallback Co-Authored-By: heihutu <[email protected]> * fix(scanner): use typed activity timeout error --------- Co-authored-by: heihutu <[email protected]>