docs(P00): clarify — v1.27 ambiguities resolved (6 Qs, D-220..D-225)

6 prior-conversation resolutions (D-214..D-219, user-confirmed) +
6 new ambiguities auto-resolved at full autonomy (D-220..D-225):
- D-220: NFR milestone (tags on v1.26.x)
- D-221: consumer archives in .ciagent/nova-blockchain-exchange/archive/
- D-222: archiving preserves traceability (archive + PROJECT + git)
- D-223: IAM_POLICY.md stays active (live baseline, D-207 pending)
- D-224: REGRESSION_REPORT regenerates on next run_regression.sh
- D-225: PROJECT.md phase-status fix is P2 (correction phase)

0 escalations. Confidence ≥ 0.85 on all new decisions.

---ci---
project: acdl
phase: 0
milestone: v1.27
status: clarify
---ci---

.ciagent/CHECKPOINT.json

@@ -1,49 +1,15 @@
 {
-  "phase": 5,
-  "stage": "complete",
-  "milestone": "v1.26",
-  "phase_role": "final",
+  "phase": 0,
+  "stage": "specify",
+  "milestone": "v1.27",
+  "phase_role": "pre_execution",
   "attempts": 0,
-  "updated_at": "2026-08-19T04:00:00Z",
+  "updated_at": "2026-08-19T04:30:00Z",
   "project": "acdl",
-  "projects": [
-    "acdl",
-    "nova-blockchain-exchange"
-  ],
-  "active_milestone": "v1.26",
-  "milestone_branch": "milestone/v1.26-pilot-activation",
-  "phase_branch": "phase/05-final-review-ship",
-  "tag_line": "v1.25.x",
-  "current_phase": {
-    "phase": 5,
-    "tag": "v1.25.5",
-    "status": "complete"
-  },
-  "previous_phase": {
-    "phase": 4,
-    "tag": "v1.25.4",
-    "status": "complete"
-  },
-  "requirements": [
-    "REQ-310",
-    "REQ-311",
-    "REQ-312",
-    "REQ-313",
-    "REQ-314",
-    "REQ-315",
-    "REQ-316",
-    "REQ-317",
-    "REQ-318",
-    "REQ-319",
-    "REQ-320",
-    "REQ-321",
-    "REQ-322"
-  ],
-  "milestone_complete": true,
-  "milestone_release": {
-    "tag": "v1.25.5",
-    "release_id": 791,
-    "url": "https://git.cloudinit.dev/continuous-intelligence/acdl/releases/tag/v1.25.5"
-  },
-  "notes": "v1.26 COMPLETE. 13 requirements (REQ-310..322). 5 phases. Live apply against 581513795199 succeeded. Confidence 0.800 pass. fact_decision.outcome=succeeded (REQ-317). Hash chain valid. Milestone merged to main. Next run starts a new milestone."
+  "projects": ["acdl", "nova-blockchain-exchange"],
+  "active_milestone": "v1.27",
+  "milestone_branch": "milestone/v1.27-po-state-catalog",
+  "phase_branch": "phase/00-pre-execution",
+  "tag_line": "v1.26.x",
+  "notes": "NFR milestone. PO state catalog + .ciagent/ compression. 3 phases planned (P1 author+archive, P2 fix-stale+wire, P3 final)."
 }