docs(ship): P0 complete — v1.24 pre-execution (specify, clarify, research, plan, grill)

---ci---
project: acdl
phase: 0
milestone: v1.24
status: complete
ship: v1.23.0 (gitea release id 635)
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,14 +1,19 @@
 {
   "phase": 0,
-  "stage": "plan",
+  "stage": "complete",
   "milestone": "v1.24",
   "phase_role": "pre_execution",
   "attempts": 0,
-  "updated_at": "2026-08-12T02:15:00Z",
+  "updated_at": "2026-08-12T02:20:00Z",
   "project": "acdl",
   "milestone_complete": false,
+  "tag": "v1.23.0",
   "tag_line": "v1.23.x",
+  "release": {
+    "forge": "gitea",
+    "release_id": 635,
+    "tag": "v1.23.0"
+  },
   "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"],
-  "phases": ["P1:consumer-guide-fixes","P2:env-transition-detect-and-destroy","P3:env-transition-tests","P4:final-review-ship"],
-  "waves": 4
+  "phases": ["P1:consumer-guide-fixes","P2:env-transition-detect-and-destroy","P3:env-transition-tests","P4:final-review-ship"]
 }