Add LaunchDeck quality and dependency gates

.github/dependabot.yml

@@ -0,0 +1,12 @@
+version: 2
+updates:
+  - package-ecosystem: npm
+    directory: /
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 5
+
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: monthly

.github/workflows/ci.yml

@@ -1,34 +1,38 @@
 name: CI
 
 on:
+  pull_request:
   push:
     branches: [main]
-  pull_request:
 
 permissions:
   contents: read
 
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
-  test:
+  quality:
+    name: Lint, test, build, and audit
     runs-on: ubuntu-latest
+    timeout-minutes: 15
+
     steps:
-      - name: Checkout
-        uses: actions/checkout@v5
+      - name: Check out repository
+        uses: actions/checkout@v4
 
-      - name: Setup Node
-        uses: actions/setup-node@v6
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
         with:
-          node-version: 24
+          node-version-file: .nvmrc
           cache: npm
 
-      - name: Install
+      - name: Install dependencies
         run: npm ci
 
-      - name: Check
+      - name: Check project
         run: npm run check
 
-      - name: Install Playwright Chromium
-        run: npx playwright install chromium --with-deps
-
-      - name: Browser Tests
-        run: npm run test:e2e
+      - name: Audit dependencies
+        run: npm audit --audit-level=moderate

.nvmrc

@@ -0,0 +1 @@
+22

README.md

@@ -36,6 +36,8 @@ npm run test:e2e
 
 LaunchDeck uses system Google Chrome for Playwright in this repo so local e2e tests do not require downloading a bundled browser when Chrome is already installed.
 
+GitHub Actions runs linting, unit tests, a production build, and a dependency audit on every pull request and push to `main`. Dependabot keeps npm and workflow dependencies visible.
+
 ## Safety Model
 
 LaunchDeck is intentionally local-first: