ci: auto-sync personal with upstream/dev daily

Author: Algorithm5838

.github/workflows/sync-personal.yml

@@ -0,0 +1,36 @@
+name: Sync personal with upstream/dev
+
+on:
+  schedule:
+    - cron: '0 0 * * *' # Daily at midnight UTC
+  workflow_dispatch:
+
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    if: github.repository != 'open-webui/open-webui'
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout personal branch
+        uses: actions/checkout@v4
+        with:
+          ref: personal
+          fetch-depth: 0
+
+      - name: Configure git
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+      - name: Fetch upstream
+        run: |
+          git remote add upstream https://github.com/open-webui/open-webui.git
+          git fetch upstream dev
+
+      - name: Rebase onto upstream/dev
+        run: git rebase upstream/dev
+
+      - name: Force push
+        run: git push --force origin personal