fix(ci): fall back to the existing repo PAT for docs publication

The migrated workflows required LANGBOT_WIKI_PUSH_TOKEN, which only exists in
the langbot-docs repository. The existing RELEASE_UPLOAD_GITHUB_TOKEN was
verified to authenticate as the owner with repo scope plus push/admin on
LangBot, langbot-docs, langbot-landing-page and the production fork, and it can
push the Wiki, so publication now falls back to it when the dedicated secret is
absent. Also retarget the cutover notes at the master branch.

Co-Authored-By: Mika (Multica) <[email protected]>
Co-authored-by: multica-agent <[email protected]>

.github/workflows/sync-blog-articles.yml

@@ -27,7 +27,7 @@ jobs:
           ref: master
           fetch-depth: 0
           # A PAT push triggers the mirror and Wiki workflows; GITHUB_TOKEN does not.
-          token: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN }}
+          token: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN || secrets.RELEASE_UPLOAD_GITHUB_TOKEN }}
       - uses: actions/setup-node@v7
         with:
           node-version: '24'
@@ -38,7 +38,7 @@ jobs:
         uses: actions/checkout@v7
         with:
           repository: langbot-app/langbot-landing-page
-          token: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN }}
+          token: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN || secrets.RELEASE_UPLOAD_GITHUB_TOKEN }}
           path: .article-source
           persist-credentials: false
       - name: Synchronize articles and images

.github/workflows/sync-github-wiki.yml

@@ -68,7 +68,7 @@ jobs:
           path: generated
       - name: Clone target Wiki
         env:
-          WIKI_PUSH_TOKEN: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN }}
+          WIKI_PUSH_TOKEN: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN || secrets.RELEASE_UPLOAD_GITHUB_TOKEN }}
         run: |
           test -n "$WIKI_PUSH_TOKEN"
           git clone "https://x-access-token:${WIKI_PUSH_TOKEN}@github.com/langbot-app/LangBot.wiki.git" target

.github/workflows/sync-landing-submodule.yml

@@ -29,7 +29,7 @@ jobs:
         run: python3 -m unittest discover -s tests -p test_sync_landing_submodule.py -v
       - name: Publish docs subtree (fast-forward only)
         env:
-          GH_TOKEN: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN }}
+          GH_TOKEN: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN || secrets.RELEASE_UPLOAD_GITHUB_TOKEN }}
         run: |
           gh auth setup-git
           git remote add docs-mirror https://github.com/langbot-app/langbot-docs.git
@@ -40,5 +40,5 @@ jobs:
       - name: Update landing submodule and production fork
         working-directory: docs
         env:
-          GH_TOKEN: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN }}
+          GH_TOKEN: ${{ secrets.LANGBOT_WIKI_PUSH_TOKEN || secrets.RELEASE_UPLOAD_GITHUB_TOKEN }}
         run: python3 scripts/sync-landing-submodule.py