chore: align repo structure with plugin conventions

Add missing config files (.eslintrc.js, .prettierrc.js, .pluginrc,
.mcp.json, renovate.json), documentation (CLAUDE.md, CONTRIBUTING.md,
README.md, SECURITY.md, LICENSE), CI/CD workflows (ci.yaml, release.yaml),
and Claude agent definitions. Rename package from headlamp-intel-gpu-plugin
to intel-gpu to match the short-name convention used by all other plugins.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/ci.yaml

@@ -0,0 +1,41 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_call:
+
+jobs:
+  ci:
+    runs-on: local-ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build plugin
+        run: npx @kinvolk/headlamp-plugin build
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Type-check
+        run: npm run tsc
+
+      - name: Format check
+        run: npm run format:check
+
+      - name: Run tests
+        run: npm test