chore: wrap-up -- spec phase, roadmap ticks, Gitea sync

- job-array-one-based-index spec.json phase -> implementation-complete
- roadmap: job-array-one-based-index entry updated (validated, bugs
  fixed); 7 implemented specs ticked (component-failover-adoption,
  config-upgrade-snapshot, ha-term-safety, job-array-single-wal-record,
  raft-sim-conformance, scheduler-sim-diagnostics, worker-rejoin-resync)
- Gitea #89 (bug-1856, wontfix), #331 (bug-1880), #335 (bug-1884) closed;
  records carry the synced status

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.kiro/specs/job-array-one-based-index/spec.json

@@ -1,9 +1,9 @@
 {
   "feature_name": "job-array-one-based-index",
   "created_at": "2026-09-30T07:09:58Z",
-  "updated_at": "2026-10-01T07:50:49Z",
+  "updated_at": "2026-10-02T08:55:05Z",
   "language": "en",
-  "phase": "tasks-generated",
+  "phase": "implementation-complete",
   "approvals": {
     "requirements": {
       "generated": true,