chore: freeze core systems candidate

.agent-taskgraph/queue/review/ABG-V2-CORE-SYSTEMS/dispatch.md

@@ -6,5 +6,5 @@
 - Goal: `task:ABG-V2-CORE-SYSTEMS`
 - Context revision: `1`
 - Runtime: HAPI visible Codex `gpt-5.6-sol / xhigh / yolo`
-- Session: PENDING
-- Identity ACK: PENDING
+- Session: `HAPI 22caeb51-307e-41a6-af3e-875b8e37ba6b`
+- Identity ACK: `IDENTITY_READY role:systems-designer team:rev-2 goal:task:ABG-V2-CORE-SYSTEMS context:1 dispatch:ABG-V2-CORE-SYSTEMS:r1`

.agent-taskgraph/queue/review/ABG-V2-CORE-SYSTEMS/ledger.md

@@ -3,3 +3,4 @@
 | Time | State | Evidence | Next action |
 |---|---|---|---|
 | 2026-08-10T22:38:28+08:00 | inbox | Owner-approved design-spec-r2 and graph-r3 | Spawn and verify visible HAPI worker |
+| 2026-08-10T23:25:46+08:00 | review | HAPI ACK verified; candidate `b0f9033` changes exactly four owned product docs; worktree clean | Freeze candidate for six-stream integration |