docs(P00): research findings — v1.26 (PoA blockchain, deploy model, DynamoDB gap, personas)

---ci---
project: acdl
phase: 0
milestone: v1.26
status: research
requirements: [REQ-310..REQ-322]
personas: [lead-developer, backend-engineer, data-engineer, policy-engineer, blockchain-engineer]
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,17 +1,17 @@
 {
   "phase": 0,
-  "stage": "clarify",
+  "stage": "research",
   "milestone": "v1.26",
   "phase_role": "pre_execution",
   "attempts": 0,
-  "updated_at": "2026-08-12T21:12:00Z",
+  "updated_at": "2026-08-12T21:13:00Z",
   "project": "acdl",
   "projects": ["acdl", "nova-blockchain-exchange"],
   "active_milestone": "v1.26",
   "milestone_branch": "milestone/v1.26-pilot-activation",
   "phase_branch": "phase/00-specify-clarify-research-plan",
   "tag_line": "v1.25.x",
-  "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"],
+  "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"],
   "pre_run": {
     "flaky_test_fixed": "8c68d68 test(metrics): fix attestation-event test freshness time-bomb",
     "acdl_to_nova_migration": "f844fea chore(bootstrap): migrate ACDL_* env vars to NOVA_*",