chore: add self hosted cd workflow

.github/workflows/cd.yml

@@ -0,0 +1,30 @@
+name: mChat Deployment
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: self-hosted
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+      - name: Use Node.js 20
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'pnpm'
+
+      - name: Install deps
+        run: pnpm i
+
+
+
+