add cicd on gitea

.gitea/workflows/merge.yml

@@ -0,0 +1,40 @@
+name: Auto Merge Downstream Branches
+
+on:
+  push:
+    branches:
+      - production
+      - staging
+
+jobs:
+  auto-merge:
+    runs-on: k8s-runner-02
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Required for merging branches
+
+      - name: Set up Git user
+        run: |
+          git config user.name "Gitea Auto Merge Bot"
+          git config user.email "actions@local.gitea"
+
+      # 🔹 If push to production, merge to staging
+      - name: Merge production → staging
+        if: gitea.ref == 'refs/heads/production'
+        run: |
+          git fetch origin staging
+          git checkout staging
+          git merge origin/production --no-edit || true
+          git push origin staging
+
+      # 🔹 If push to staging, merge to development
+      - name: Merge staging → development
+        if: gitea.ref == 'refs/heads/staging'
+        run: |
+          git fetch origin development
+          git checkout development
+          git merge origin/staging --no-edit || true
+          git push origin development