{
  "date": "2026-10-15",
  "authorization": "Only the retention index and load verification in production",
  "productionAction": {
    "startedAt": "2026-10-15T14:55:45Z",
    "statement": "CREATE INDEX CONCURRENTLY idx_scheduler_runs_finished_at ON public.scheduler_runs (finished_at)",
    "result": "success",
    "valid": true,
    "ready": true,
    "verifiedAt": "2026-10-15T15:01:30Z",
    "size": "23 MB",
    "indexScans": 697,
    "planBefore": "Parallel Seq Scan",
    "planAfter": "Bitmap Heap Scan / Bitmap Index Scan idx_scheduler_runs_finished_at",
    "restarts": false,
    "manualDataDeletion": false,
    "retentionPeriodChanged": false,
    "applicationDeployed": false
  },
  "observations": [
    { "period": "before", "postgresCpuPercent": 66.51, "hostIdlePercent": [0, 0], "hostIoWaitPercent": [29, 34], "ioPressureSomeAvg10Percent": 63.67 },
    { "period": "2026-10-15T14:56Z", "postgresCpuPercent": 0.16, "hostIdlePercent": [74, 94], "hostIoWaitPercent": [0, 5], "ioPressureSomeAvg10Percent": 1.70 },
    { "period": "2026-10-15T15:00Z", "postgresCpuPercent": 0.13, "hostIdlePercent": [94, 97], "hostIoWaitPercent": [0, 1], "ioPressureSomeAvg10Percent": 0.48 }
  ],
  "checks": {
    "actualMigrationTest": "passed on separate test Debian; bundled from committed TypeScript source",
    "temporaryRows": 20000,
    "migrationIdempotence": "passed",
    "selectivePlanAndResultPreservation": "passed",
    "temporaryFixtureRolledBack": true,
    "testBootstrapExecuted": false,
    "backendBuild": "passed",
    "scopedEslint": "passed"
  },
  "limitations": [
    "Several-minute observations under ordinary workload, not a capacity benchmark",
    "Not proof that every RouterOS timeout or interface stall has been resolved",
    "Map fix remains local; traffic history refresh and numerical validation remain separate work"
  ]
}