docs(P00): validate specification — v1.20 milestone (REQ-230..244)

---ci---
project: acdl
phase: 0
milestone: v1.20
status: specify
---/ci---

.ciagent/CHECKPOINT.json

@@ -1,13 +1,10 @@
 {
-  "phase": 2,
-  "stage": "complete",
-  "milestone": "v1.19",
-  "phase_role": "final",
+  "phase": 0,
+  "stage": "specify",
+  "milestone": "v1.20",
+  "phase_role": "pre_execution",
   "attempts": 0,
-  "updated_at": "2026-08-06T20:30:00Z",
-  "milestone_complete": true,
-  "tag": "v1.18.1",
-  "release_id": 531,
-  "requirements": ["REQ-229"],
-  "notes": "v1.19 milestone complete. NFR-only chore milestone: 1 execution phase (P1 nova-sync-script, tag v1.18.0) + 1 final phase (P2 review+audit+ship, tag v1.18.1 = milestone release). scripts/sync_to_nova.sh replaces sync_to_gl.sh as manual-only 2nd-release pipeline ~/acdl -> ~/nova (GitLab jonathanchery/nova, separate repo/history, consumer/platform-team audience). Consumer subset rsync, 13 fixed-order domain commits via positional -m, conventional-commit validation. 8 new tests pass. Review clean (no P0). Audit clean (4/4 ci blocks, reconstruction OK, no secrets, sync_to_gl.sh removed). 5 decisions locked (D-143..D-147). Next milestone starts fresh."
-}
+  "updated_at": "2026-08-07T20:00:00Z",
+  "milestone_complete": false,
+  "notes": "v1.20 milestone: Consumer Cleanup + Transparent Terraform + Slide Pipeline + Product Roadmap. Three user-directed inputs: (1) remove all gitea/gitlab from synced files, (2) simplify docs for Platform Team audience, (3) terraform transparency + feature flags. Plus: dedicated S&P-themed slide render pipeline + 12-month product roadmap slides."
+}