burn-down Part B: 14 small rows fixed and closed across four repos (306 -> 292); no :latest in the hub build; gate list pinned; closed-id duplicates refused; R-262 subset pinned

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

hub/internal/api/handler.go

@@ -724,8 +724,9 @@ type hostPBSSnapshot struct {
 	VerifyUPID  string `json:"verify_upid,omitempty"`
 }
 
-// hostBackup / hostRestoreTest mirror the agent's hub.Backup / hub.RestoreTest wire
-// contract field-for-field (slice 6, doc 03 §8). DUPLICATED contract — the golden stays
+// hostBackup mirrors the agent's hub.Backup wire contract field-for-field; hostRestoreTest is a deliberate
+// SUBSET of hub.RestoreTest — the agent's mount_parity, mount_inventory and skipped are NOT modelled here (R-262,
+// pinned by TestR262_RestoreTestFieldsAreAKnownSubset) (slice 6, doc 03 §8). DUPLICATED contract — the golden stays
 // byte-identical with felhom-agent's copy and the key-set tests guard drift. The hub
 // persists these via report_json (no new columns this slice) and surfaces a FAILED
 // restore-test prominently (the loudest DR signal). The rich backup policy is slice 10.