Setup deplyment action

.github/workflows/deploy.yaml

@@ -0,0 +1,41 @@
+name: Deploy
+on:
+  push:
+    branches:
+      - main
+      - dev
+  pull_request:
+    types: closed
+    branches:
+      - dev
+
+jobs:
+  Deploy:
+    if: (github.ref_name == 'dev' && github.event.pull_request.merged == true) || github.ref_name == 'main'
+    runs-on: ubuntu-latest
+    env:
+      MODAL_TOKEN_ID: ${{ secrets.MODAL_TOKEN_ID }}
+      MODAL_TOKEN_SECRET: ${{ secrets.MODAL_TOKEN_SECRET }}
+      MODAL_ENVIRONMENT: |-
+        ${{ case(
+          github.ref_name == 'main', 'prod',
+          github.ref_name == 'dev', 'dev',
+          'dev'
+        ) }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Install python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+
+      - name: Install Modal
+        run: |
+          python -m pip install --upgrade pip
+          pip install modal
+
+      - name: Deploy to Modal
+        run: |
+          modal deploy modal_app.py