{
 "schema": "snin-mail-queue-fence-probe/1.0",
 "code_revision": "4d1ed4fd1087a633fa05cb8ed3cd09fdcdfd754d",
 "repo": "https://github.com/konantgit-sys/snin-mail-nostr",
 "reclaim_timeout_s": 120,
 "max_attempts": 3,
 "case_late_success": {
  "late_finish_ok": true,
  "claim_A_then_B": {
   "a_claimed": true,
   "reclaimed": 1,
   "b_claimed": true,
   "row_before_late_finish": {
    "status": "processing",
    "worker": "B",
    "attempts": 0
   }
  },
  "legacy_finish": {
   "rows_affected_expected": 1,
   "row_after": {
    "status": "processing",
    "worker": "B",
    "attempts": 0
   },
   "stale_write_landed": false
  },
  "fenced_contract": {
   "stale_holder_rows_affected": 0,
   "current_holder_rows_affected": 1,
   "row_after": {
    "status": "done",
    "worker": "B",
    "attempts": 0
   }
  }
 },
 "case_late_failure": {
  "late_finish_ok": false,
  "claim_A_then_B": {
   "a_claimed": true,
   "reclaimed": 1,
   "b_claimed": true,
   "row_before_late_finish": {
    "status": "processing",
    "worker": "B",
    "attempts": 0
   }
  },
  "legacy_finish": {
   "rows_affected_expected": 1,
   "row_after": {
    "status": "processing",
    "worker": "B",
    "attempts": 0
   },
   "stale_write_landed": false
  },
  "fenced_contract": {
   "stale_holder_rows_affected": 0,
   "current_holder_rows_affected": 1,
   "row_after": {
    "status": "pending",
    "worker": "B",
    "attempts": 0
   }
  }
 },
 "verdict": {
  "stale_success_overwrites_active_row": false,
  "stale_failure_mutates_active_row": false,
  "fenced_rejects_stale_holder": true,
  "fenced_allows_current_holder": true
 },
 "scope_note": "Queue-state only: this shows a lost/duplicated decryption task row, not an observed duplicate external email. No live DB, worker or relay was touched."
}