chore: ci 워크플로우 추가

Author: ldhldh07

.github/workflows/ci.yml

@@ -1,5 +1,65 @@
 name: CI
 
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  test:
+    name: Unit & Integration (Vitest)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Run Vitest
+        run: pnpm test
+
+  e2e:
+    name: E2E (Playwright)
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: Install Playwright browsers
+        run: pnpm exec playwright install --with-deps
+
+      - name: Run Playwright tests
+        run: pnpm e2e
+
+name: CI
+
 on:
   pull_request_target:
     types: