ci: add workflow

.github/workflows/split.yml

@@ -0,0 +1,46 @@
+name: Split Monorepo
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - mtd/split
+  # schedule:
+  #   - cron: '0 2 * * 0' # Run weekly on Sunday at 2 AM (adjust as needed)
+
+jobs:
+  split-repo:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Monorepo
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Set Up Git
+        run: |
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+
+      - name: Split Backend Repo
+        env:
+          BACKEND_REPO_URL: https://github-actions:${{ secrets.GITHUB_TOKEN }}@github.com/${{ secrets.BACKENd_REPO }}.git
+        run: |
+          # Clone only the backend directory with history
+          git clone --no-checkout $GITHUB_SERVER_URL/$GITHUB_REPOSITORY backend-split
+          cd backend-split
+          git filter-repo --path backend/ --path-rename backend/:/
+          git remote add backend $BACKEND_REPO_URL
+          git push --force backend main
+
+      - name: Split Frontend Repo
+        env:
+          FRONTEND_REPO_URL: https://github-actions:${{ secrets.GITHUB_TOKEN }}@github.com/${{ secrets.FRONTEND_REPO }}.git
+        run: |
+          # Clone only the frontend directory with history
+          git clone --no-checkout $GITHUB_SERVER_URL/$GITHUB_REPOSITORY frontend-split
+          cd frontend-split
+          git filter-repo --path frontend/ --path-rename frontend/:/
+          git remote add frontend $FRONTEND_REPO_URL
+          git push --force frontend main