refactor(release): collapse to 2-PR shape + delete dead rotation slice

.github/workflows/release-permissions-check.yml

@@ -2,8 +2,9 @@ name: Release Permissions Check
 
 # Manual probe of the release App's installed permissions on this repo.
 # Mints an App token from the RELEASE_APP_CLIENT_ID org variable +
-# RELEASE_APP_PRIVATE_KEY org secret and
-# exercises only what tools/release/ rotation needs (per docs/release-automation-plan.md).
+# RELEASE_APP_PRIVATE_KEY org secret and exercises what the
+# release-mechanism workflows in tools/release/ need (build-release,
+# release-announcements, ship-release, dispatch fan-out).
 # Run after installing the App and after secrets rotations.
 
 on:

.github/workflows/ship-release.yml

@@ -1,10 +1,10 @@
 name: Ship Release
 
-# Manually-triggered orchestration for the three-PR release flow (#705):
-# merges infra → conductor → docs in strict order, skipping any already merged
+# Manually-triggered orchestration for the two-PR release flow (#705):
+# merges conductor → docs in strict order, skipping any already merged
 # (so the same trigger handles partial-merge recovery), and refusing to merge
 # anything if any unmerged PR is not ready. Mints one App token with PR-write
-# on all three repos and posts a release/ship-approved commit status on each
+# on both repos and posts a release/ship-approved commit status on each
 # PR head before merging it (so branch protection can require it later).
 
 on:

tools/release/README.md

@@ -14,8 +14,7 @@ tools/release/
 ├── contracts/   JSON schemas vendored across consumer repos
 ├── scripts/     Operational shell probes (App-token sanity checks etc.)
 ├── templates/   PR body / changelog Twig templates
-├── Taskfile.yml Glue between workflows and the PHP CLIs (`task release:*`)
-└── versions.yml The 3-slot rotation registry (current/next/dev)
+└── Taskfile.yml Glue between workflows and the PHP CLIs (`task release:*`)
 ```
 
 Workflow steps in `.github/workflows/` are deliberately thin: mint App token,