feat: add Cypress end-to-end tests for login functionality and CI configuration

.github/workflows/ci.yml

@@ -0,0 +1,23 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
+      with:
+        node-version: '22'
+    - uses: pnpm/action-setup@v4
+      with:
+        version: 8
+    - run: pnpm install
+    - run: npx prisma generate
+    - run: npx prisma db push
+    - run: node scripts/seed-test.js
+    - run: pnpm ci