feat: add GitHub Actions CI and deployment workflows (#9)

* feat: add Samsung FE series, Z Fold 5/6, Z Flip 5/6, and more A series devices

- Samsung Galaxy S24 FE, S23 FE, S21 FE, S20 FE
- Samsung Galaxy Z Fold 6, Z Fold 5
- Samsung Galaxy Z Flip 6, Z Flip 5
- Samsung Galaxy A56, A53, A36, A16, A14
- Corrected A54/A53/A14 resolution to 1080x2408

* feat: add GitHub Actions CI and deployment workflows (fixes #5)

Author: tanmayhutt

.github/workflows/ci.yml

@@ -0,0 +1,42 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+      - staging
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: latest
+
+      - name: Install system dependencies for canvas
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libcairo2-dev libpango1.0-dev libjpeg-dev libgif-dev librsvg2-dev
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Lint
+        run: bun run lint
+
+      - name: Test
+        run: bun test
+
+      - name: Build Next.js
+        run: bun run build
+
+      - name: Build Docker image (Verification)
+        run: docker build -t gitwall-test .

.github/workflows/deploy.yml

@@ -0,0 +1,35 @@
+name: Deploy to DigitalOcean
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy via SSH
+        uses: appleboy/ssh-action@v1.0.3
+        with:
+          host: ${{ secrets.SSH_HOST }}
+          username: ${{ secrets.SSH_USER }}
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          script: |
+            cd GitWall
+            git pull origin main
+            docker build -t gitwall .
+            docker stop gitwall || true
+            docker rm gitwall || true
+            docker run -d -p 3000:3000 --name gitwall --restart unless-stopped gitwall
+            
+            # Wait for container to start
+            echo "Waiting for Next.js server to start..."
+            sleep 10
+            
+            # Health check
+            if ! curl -f http://localhost:3000/api/health; then
+              echo "Health check failed!"
+              exit 1
+            fi
+            echo "Health check passed!"