docs(P00): research findings — v1.24 env-transition detect-and-destroy

---ci---
project: acdl
phase: 0
milestone: v1.24
status: research
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,14 +1,13 @@
 {
   "phase": 0,
-  "stage": "clarify",
+  "stage": "research",
   "milestone": "v1.24",
   "phase_role": "pre_execution",
   "attempts": 0,
-  "updated_at": "2026-08-12T02:05:00Z",
+  "updated_at": "2026-08-12T02:10:00Z",
   "project": "acdl",
   "milestone_complete": false,
   "tag_line": "v1.23.x",
   "requirements": ["REQ-276","REQ-277","REQ-278","REQ-279","REQ-280","REQ-281","REQ-282","REQ-283","REQ-284","REQ-285","REQ-286","REQ-287","REQ-288","REQ-289","REQ-290"],
-  "clarify_resolutions": 6,
-  "clarify_escalations": 0
+  "decisions": ["D-201","D-202","D-203","D-204","D-205","D-206","D-207","D-208"]
 }