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3 Commits
Author SHA1 Message Date
pingqiu fb0da91196 feat: start Phase 14 V2 core shell 
Make the first V2 core owner explicit in sw-block by freezing Phase 14 docs, mode/readiness/publication semantics, and bounded command emission rules. This turns accepted Phase 13 constraints into executable core behavior without overclaiming live runtime cutover.

Made-with: Cursor
 2026-04-03 16:11:38 -07:00
pingqiuandClaude Opus 4.6 61e9408261 fix: separate stable ReplicaID from Endpoint in registry 
Registry is now keyed by stable ReplicaID, not by address.
DataAddr changes preserve sender identity — the core V2 invariant.

Changes:
- ReplicaAssignment{ReplicaID, Endpoint} replaces map[string]Endpoint
- AssignmentIntent.Replicas uses []ReplicaAssignment
- Registry.Reconcile takes []ReplicaAssignment
- Tests use stable IDs ("replica-1", "r1") independent of addresses

New test: ChangedDataAddr_PreservesSenderIdentity
- Same ReplicaID, different DataAddr (10.0.0.1 → 10.0.0.2)
- Sender pointer preserved, session invalidated, new session attached
- This is the exact V1/V1.5 regression that V2 must fix

doc.go: clarified Slice 1 core vs carried-forward files

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-29 21:06:11 -07:00
pingqiuandClaude Opus 4.6 20d70f9fb6 feat: add V2 engine replication core (Phase 05 Slice 1) 
Creates sw-block/engine/replication/ — the real V2 engine ownership core,
promoted from sw-block/prototype/enginev2/ with all accepted invariants.

Files:
- types.go: Endpoint, ReplicaState, SessionKind, SessionPhase, FSM transitions
- sender.go: per-replica Sender with full execution + rebuild APIs
- session.go: Session with identity, phases, frozen target, truncation, budget
- registry.go: Registry with reconcile + assignment intent + epoch invalidation
- budget.go: CatchUpBudget (duration, entries, stall detection)
- rebuild.go: RebuildState FSM (snapshot+tail vs full base)
- outcome.go: HandshakeResult + ClassifyRecoveryOutcome

Tests (ownership_test.go, 13 tests):
- Changed-address invalidation (A10)
- Stale session ID rejected at all APIs (A3)
- Stale completion after supersede (A3)
- Epoch bump invalidates all sessions (A3)
- Stale assignment epoch rejected
- Rebuild exclusivity (catch-up APIs rejected)
- Rebuild full lifecycle
- Frozen target rejects chase (A5)
- Budget violation escalates (A5)
- E2E: 3 replicas, 3 outcomes

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
 2026-03-29 20:51:01 -07:00