docs(archreview): PLAN-02 tasks.json — mark T4,T6,T7 complete (batch 2)

archreview/plans/PLAN-02-communication-store-and-forward.md.tasks.json

@@ -24,7 +24,7 @@
     {
       "id": 4,
       "subject": "Task 4: Wire the delivery gate in the Host + align the S&F design doc",
-      "status": "pending",
+      "status": "completed",
       "blockedBy": [
         3
       ]
@@ -38,7 +38,7 @@
     {
       "id": 6,
       "subject": "Task 6: Endpoint-safe unsubscribe in DebugStreamBridgeActor + concurrent-session regression test",
-      "status": "pending",
+      "status": "completed",
       "blockedBy": [
         5
       ]
@@ -46,7 +46,7 @@
     {
       "id": 7,
       "subject": "Task 7: Bound the retry sweep with a batch LIMIT",
-      "status": "pending",
+      "status": "completed",
       "blockedBy": [
         3
       ]