docs(P55): rewrite PROJECT/ROADMAP/decks to verified reality; unfreeze decks

PROJECT.md gains a 'Capability Status (Re-Verified 2026-07-27)' section
after Domain Boundaries: decay disclosure, the 16 auto-verified
capabilities table, the 6 IAM-gated escalated resources, and the
regression-gate note. ROADMAP.md v1.9.8 entry annotated 'Last
deck-polish phase before the v1.10 deck-freeze'; new v1.10 overview
entry noting v1.9.1-v1.9.8 are 'superseded-by-reverification'. Both
leadership decks disclose the 2026-07-27 re-verification in their
maturity-framing headers, citing .ciagent/CAPABILITY_INVENTORY.md as
the source of truth.

No 'shipped'/'Available today' claims remain that aren't backed by a
Verified capability or an explicit escalation note. The 6 IAM-gated
cloud resources (contracts table, Lambda, ECS service, CloudFront
stack, uptime-kuma, OIDC role) are explicitly listed as escalated,
not silently omitted.

Decks unfrozen. v1.10.0 ready to tag.

---ci---
project: acdl
phase: 55
milestone: v1.10
status: verify
requirements:
  covered: [REQ-115]
  partial: []
decisions: [D-094]
---/ci---

.ciagent/REQUIREMENTS.md

@@ -454,4 +454,4 @@
 | REQ-112 | 52 | complete (v1.9.9) |
 | REQ-113 | 53 | complete (v1.9.10) |
 | REQ-114 | 54 | complete (v1.9.11) |
-| REQ-115 | 55 | pending |
+| REQ-115 | 55 | complete (v1.9.12) |