jedarden cb4fa54f89 P6.4: Mode B leader-only singleton coordinator (plan §14.5) ... Implements lease-based coordination for Mode B operations: - LeaderElection service with per-scope leases (reshard, rebalance, etc.) - ModeBOpLeader<E> generic coordinator with phase state persistence - Task store support for leader lease operations (SQLite, Redis) - Mode C coordinator for chunked background jobs - Reshard/dump chunking modules Lease semantics: - TTL 10s, renewed every 3s (configurable) - New leaders resume from last committed phase after failover - All Mode B operations are idempotent and resumable Acceptance tests verified: - Exactly one leader across multiple pods - Failover promotes new leader within lease_ttl_s - Phase recovery after leader loss (reshadow, 2PC) - Leader metrics consistency (miroir_leader) Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>		2026-05-23 05:21:16 -04:00
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001_initial.sql	P3.4: Implement schema versioning system	2026-04-19 00:13:19 -04:00
002_feature_tables.sql	P3.3: Fix Redis migrate to always update schema version	2026-05-20 07:18:57 -04:00
003_task_registry_fields.sql	P3: Task Registry + Persistence — 14-table SQLite schema, Redis mirror, Helm validation	2026-04-24 15:50:20 -04:00
004_mode_b_operations.sql	P6.4: Mode B leader-only singleton coordinator (plan §14.5)	2026-05-23 03:48:27 -04:00
005_jobs_chunking.sql	P6.4: Mode B leader-only singleton coordinator (plan §14.5)	2026-05-23 05:21:16 -04:00