Fix docs deployment from tag triggers by using workflow_dispatch

.github/workflows/docs-trigger.yaml

@@ -0,0 +1,22 @@
+name: Trigger Docs on Tag
+
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  actions: write
+
+jobs:
+  trigger-docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/github-script@v7
+        with:
+          script: |
+            await github.rest.actions.createWorkflowDispatch({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              workflow_id: 'docs.yaml',
+              ref: 'master'
+            })

.github/workflows/docs.yaml

@@ -4,7 +4,6 @@ on:
   workflow_dispatch:
   push:
     branches: ['master']
-    tags: ['v*']
 
 permissions:
   contents: read
@@ -24,7 +23,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          fetch-depth: 0  # Fetch all history for version detection
+          fetch-depth: 0  # Fetch all history for sphinx-multiversion
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - uses: astral-sh/setup-uv@v5