feat: implement automated dependency updates via Dependabot (#263)

.github/dependabot.yml

@@ -0,0 +1,34 @@
+version: 2
+
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "UTC"
+    # Group all non-major updates into a single PR to reduce noise
+    groups:
+      production-dependencies:
+        dependency-type: "production"
+        update-types:
+          - "minor"
+          - "patch"
+      development-dependencies:
+        dependency-type: "development"
+        update-types:
+          - "minor"
+          - "patch"
+    # Limit open PRs to avoid overwhelming the board
+    open-pull-requests-limit: 5
+    # Keep PR titles descriptive
+    commit-message:
+      prefix: "chore(deps)"
+      prefix-development: "chore(deps-dev)"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "automated"
+    # Target the main branch
+    target-branch: "main"

.github/workflows/ci.yml

@@ -1,13 +1,66 @@
 name: Web CI
 
-on: [push, pull_request]
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
 
 jobs:
-  check:
+  security:
+    name: Security Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "npm"
+      - run: npm ci --prefer-offline
       - name: Security Audit
         run: npm audit --audit-level=critical
       - name: Verify Package Integrity
         run: ls src/app/page.tsx
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "npm"
+      - run: npm ci --prefer-offline
+      - name: Run ESLint
+        run: npm run lint
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "npm"
+      - run: npm ci --prefer-offline
+      - name: Run Tests
+        run: npm test -- --ci --passWithNoTests
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    needs: [lint, test]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: "npm"
+      - run: npm ci --prefer-offline
+      - name: Build
+        run: npm run build
+        env:
+          # Prevent build failures from missing optional env vars
+          NEXT_PUBLIC_API_URL: ${{ secrets.NEXT_PUBLIC_API_URL || 'http://localhost:3001' }}