Record WP-0005 T12 Option A: 30-day Gitea rollback window

Align forgejo-production-decisions with operator choice to keep coulombcore
Gitea as read-only fallback through 2026-08-07.

docs/forgejo-production-decisions.md

@@ -181,8 +181,10 @@ Freeze-all remains documented only as an **emergency fallback** if staged drift
 becomes unacceptable — not the default path.
 
 **Rollback (per repo):** Re-point `origin` to `gitea-remote`; Forgejo copy becomes
-stale mirror. No Gitea repo deletes for ≥90 days after promotion. Gitea Helm stays
-until T12 explicit approval.
+stale mirror. No Gitea repo deletes for **30 days** after promotion (cutover
+2026-07-08 → rollback window ends **2026-08-07**). Gitea Helm retained as
+read-only fallback per T12 Option A (2026-07-09); revisit retirement after the
+window closes.
 
 **Gates before each tier-3 promotion:**
 
@@ -206,7 +208,19 @@ All Wave-1 production design choices for Forgejo are decided:
 | Backup | Option A (Nextcloud + age) |
 | Cutover | **Option A (staged per-repo)** |
 
+## T12 — Gitea retirement (decided 2026-07-09)
+
+**Operator choice:** **Option A** — keep coulombcore Gitea Helm as read-only
+fallback; do **not** retire the release now.
+
+| Parameter | Value |
+| --- | --- |
+| Rollback window | **30 days** from cutover (2026-07-08 → **2026-08-07**) |
+| Gitea state | 79/79 repos archived; package push disabled |
+| Revisit | After **2026-08-07** — reassess Option B (Helm retirement) |
+| Evidence | `railiance-infra/docs/forgejo-gitea-retirement-checklist.md` |
+
 ## Open decisions (need operator input)
 
-_All T02 items decided as of 2026-07-09._ Implementation tracks: T04/T09 backup
-automation, T07 npm hardening, T10/T11 staged migration waves.
+_All T02 and T12 items decided as of 2026-07-09._ Implementation tracks: T04/T09
+backup gate (7-day), stale OCI/npm doc references in layer repos.