docs(localdb): record wave 4 completion (Tasks 4, 5a, 7) + known flakes

Claude-Session: https://claude.ai/code/session_01BL2Vu1ESDQ9SCN4gVKkdts

docs/plans/2026-07-19-localdb-adoption-phase1.md.tasks.json

@@ -33,11 +33,11 @@
     {"id": 1, "subject": "Task 1: Add LocalDb packages to the build", "status": "completed", "commit": "7370b331"},
     {"id": 2, "subject": "Task 2: Shared schema helpers (tracking + events, GUID PK)", "status": "completed", "blockedBy": [1], "commit": "727fa48c"},
     {"id": 3, "subject": "Task 3: Register LocalDb in the site composition root", "status": "completed", "blockedBy": [2], "commit": "2977e6c4", "note": "LocalDb:Path added to 10 configs (8 site nodes incl. docker-env2 site-x, dev template, wonder prod sample) - it is REQUIRED via ValidateOnStart, so any site config missing it fails startup."},
-    {"id": 4, "subject": "Task 4: Rewire OperationTrackingStore onto ILocalDb connections", "status": "pending", "blockedBy": [3]},
+    {"id": 4, "subject": "Task 4: Rewire OperationTrackingStore onto ILocalDb connections", "status": "completed", "blockedBy": [3], "commit": "0b5e9b44", "note": "Ctor takes ILocalDb, not IOptions<OperationTrackingOptions>; both ad-hoc reader paths switched too and their OpenAsync calls removed (CreateConnection returns an OPEN connection). Three DI fixtures needed LocalDb:Path added because resolving IOperationTrackingStore now forces ILocalDb construction."},
-    {"id": 5, "subject": "Task 5a: Rewire SiteEventLogger onto ILocalDb + mint GUID ids", "status": "partial", "blockedBy": [3], "commit": "727fa48c", "note": "GUID minting DONE (landed with Task 2 to avoid committing a broken writer). REMAINING: swap the owned SqliteConnection to ILocalDb.CreateConnection() - still blocked on Task 3."},
+    {"id": 5, "subject": "Task 5a: Rewire SiteEventLogger onto ILocalDb + mint GUID ids", "status": "completed", "blockedBy": [3], "commit": "727fa48c + 0d8a80aa", "note": "GUID minting landed early with Task 2 (727fa48c) to avoid committing a writer that violated site_events.id NOT NULL. The ILocalDb.CreateConnection() swap is 0d8a80aa. connectionStringOverride DELETED, not preserved: site_events is replicated, so a raw connection lacks zb_hlc_next() and fails closed."},
     {"id": 15, "subject": "Task 5b: Migrate the event-log read path off integer ids", "status": "completed", "blockedBy": [5], "commit": "727fa48c"},
     {"id": 6, "subject": "Task 6: One-time legacy data migrator", "status": "pending", "blockedBy": [4, 5]},
-    {"id": 7, "subject": "Task 7: Replication registration + sync endpoint (default OFF)", "status": "pending", "blockedBy": [3]},
+    {"id": 7, "subject": "Task 7: Replication registration + sync endpoint (default OFF)", "status": "completed", "blockedBy": [3], "commit": "a560e9ea", "note": "DEVIATION: AddZbLocalDbReplication moved from Program.cs (where the plan put it) into SiteServiceRegistration, because the composition-root tests build that graph and not Program.cs - in Program.cs a missing registration would still show green. MapZbLocalDbSync stays in Program.cs (needs the WebApplication). Endpoint is UNAUTHENTICATED until Task 8; no config in this repo sets a peer."},
     {"id": 8, "subject": "Task 8: Bearer auth interceptor for the sync endpoint", "status": "pending", "blockedBy": [7]},
     {"id": 9, "subject": "Task 9: Surface ISyncStatus as site health signal", "status": "pending", "blockedBy": [7]},
     {"id": 10, "subject": "Task 10: Two-node in-process convergence test", "status": "pending", "blockedBy": [6, 8, 15]},
@@ -46,5 +46,15 @@
     {"id": 13, "subject": "Task 13: Documentation truth pass", "status": "pending", "blockedBy": [12]},
     {"id": 14, "subject": "Task 14: Phase 2 gate - plan the bespoke-replicator migration", "status": "pending", "blockedBy": [12]}
   ],
+  "knownFlakes": [
+    {
+      "test": "SiteRuntime.Tests InstanceActorChildAttributeRaceTests.ChildActors_AreSeededFromAnIsolatedCopy_NotTheLiveAttributesDictionary",
+      "note": "Intermittent ActorNotFoundException under full-suite load; passes in isolation and in most full runs. Pre-existing, unrelated to LocalDb. Worth its own issue."
+    },
+    {
+      "test": "AuditLog.Tests ParentExecutionIdCorrelationTests.InboundRoutedRun_AllRoutedRows_CarryInboundExecutionId_AsParentExecutionId",
+      "note": "Cold-MSSQL-fixture timing: ~91s and AwaitAssert-times-out on a cold fixture, ~1s and passes warm. Baselined against a stashed tree to confirm it is not a LocalDb regression."
+    }
+  ],
   "lastUpdated": "2026-07-19"
 }