Enhance project configuration and accessibility support

.eslintrc.json

@@ -1,6 +1,25 @@
 {
   "extends": [
     "next/core-web-vitals",
-    "next/typescript"
+    "next/typescript",
+    "plugin:jsx-a11y/recommended"
+  ],
+  "plugins": ["jsx-a11y"],
+  "rules": {
+    "jsx-a11y/anchor-is-valid": "off",
+    "jsx-a11y/click-events-have-key-events": "warn",
+    "jsx-a11y/no-static-element-interactions": "warn"
+  },
+  "overrides": [
+    {
+      "files": [
+        "components/map-preview.tsx",
+        "components/dimension-mapping.tsx",
+        "components/ui/sidebar.tsx"
+      ],
+      "rules": {
+        "@typescript-eslint/ban-ts-comment": "off"
+      }
+    }
   ]
 }

.github/workflows/ci.yml

@@ -0,0 +1,100 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  lint-and-typecheck:
+    name: Lint and Type Check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Install dependencies
+        continue-on-error: false
+        run: pnpm install --frozen-lockfile --ignore-scripts
+
+      - name: Lint
+        run: pnpm lint
+
+      - name: Type Check
+        run: pnpm type-check
+
+  accessibility:
+    name: Accessibility Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Install dependencies
+        continue-on-error: false
+        run: pnpm install --frozen-lockfile --ignore-scripts
+
+      - name: Install Playwright browsers
+        run: pnpm exec playwright install --with-deps chromium
+
+      - name: Run accessibility tests
+        run: pnpm test:a11y
+        env:
+          PLAYWRIGHT_TEST_BASE_URL: http://localhost:3000
+
+  bundle-size:
+    name: Bundle Size Check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Install dependencies
+        continue-on-error: false
+        run: pnpm install --frozen-lockfile --ignore-scripts
+
+      - name: Build application
+        run: pnpm build
+
+      - name: Check bundle sizes
+        run: pnpm check:bundle

.github/workflows/lighthouse.yml

@@ -0,0 +1,77 @@
+name: Lighthouse CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  lighthouse:
+    name: Lighthouse Performance Audit
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Install dependencies
+        continue-on-error: false
+        run: pnpm install --frozen-lockfile --ignore-scripts
+
+      - name: Build application
+        run: pnpm build
+
+      - name: Start server
+        run: pnpm start &
+        env:
+          PORT: 3000
+
+      - name: Wait for server
+        run: |
+          timeout=60
+          elapsed=0
+          while ! curl -f http://localhost:3000 > /dev/null 2>&1; do
+            if [ $elapsed -ge $timeout ]; then
+              echo "Server failed to start within $timeout seconds"
+              exit 1
+            fi
+            sleep 2
+            elapsed=$((elapsed + 2))
+          done
+          echo "Server is ready"
+
+      - name: Run Lighthouse CI
+        uses: treosh/lighthouse-ci-action@v11
+        with:
+          urls: |
+            http://localhost:3000/
+            http://localhost:3000/landing
+          uploadArtifacts: true
+          temporaryPublicStorage: true
+          configPath: ./.lighthouserc.json
+
+      - name: Check Lighthouse scores
+        run: |
+          # Extract scores from Lighthouse CI output
+          # This is a simplified check - in production, use lighthouse-ci's built-in assertions
+          echo "Lighthouse audit completed. Check the artifacts for detailed reports."
+

.gitignore

@@ -25,3 +25,8 @@ yarn-error.log*
 # typescript
 *.tsbuildinfo
 next-env.d.ts
+
+# playwright
+/test-results/
+/playwright-report/
+/playwright/.cache/

.lighthouserc.json

@@ -0,0 +1,25 @@
+{
+  "ci": {
+    "collect": {
+      "numberOfRuns": 3,
+      "startServerCommand": "pnpm start",
+      "url": ["http://localhost:3000/", "http://localhost:3000/landing"]
+    },
+    "assert": {
+      "assertions": {
+        "categories:performance": ["error", { "minScore": 0.75 }],
+        "categories:accessibility": ["error", { "minScore": 0.90 }],
+        "categories:best-practices": ["error", { "minScore": 0.90 }],
+        "categories:seo": ["error", { "minScore": 0.85 }],
+        "first-contentful-paint": ["error", { "maxNumericValue": 3000 }],
+        "largest-contentful-paint": ["error", { "maxNumericValue": 6000 }],
+        "total-blocking-time": ["error", { "maxNumericValue": 600 }],
+        "cumulative-layout-shift": ["error", { "maxNumericValue": 0.15 }]
+      }
+    },
+    "upload": {
+      "target": "temporary-public-storage"
+    }
+  }
+}
+

.npmrc

@@ -0,0 +1,3 @@
+# Skip postinstall scripts by default to avoid failures
+# CI will use --ignore-scripts flag explicitly
+enable-pre-post-scripts=false