chore: migrate tests from mocha/chai to node:test

.changeset/browser-logs-node-test-runner.md

@@ -0,0 +1,19 @@
+---
+"@web/browser-logs": major
+---
+
+BREAKING: Migrate to Node.js native test runner
+
+- Replace Mocha with Node.js `node:test` module
+- Replace Chai with Node.js `node:assert/strict`
+- Use Node 24's native TypeScript type stripping (enabled by default)
+- Update test imports for ES modules (__dirname, require)
+- All 41 tests passing
+
+**Migration:** No API changes. Development-only breaking change.
+
+**For contributors:**
+- Tests now use `node:test` instead of Mocha
+- Use `npm run test:node` to run tests
+- Node 24+ required for development
+- TypeScript test files run directly without build step

.github/workflows/lint.yml

@@ -14,12 +14,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup Node 20
+      - name: Setup Node 22
         uses: actions/setup-node@v4
         env:
           FORCE_COLOR: 0
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
 
       - name: Install Dependencies

.github/workflows/verify-browser.yml

@@ -19,12 +19,12 @@ jobs:
       - name: Workaround for Chrome sandbox issue in Ubuntu 24.04
         run: sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
 
-      - name: Setup Node 20
+      - name: Setup Node 22
         uses: actions/setup-node@v4
         env:
           FORCE_COLOR: 0
         with:
-          node-version: 20
+          node-version: 22
           cache: npm
 
       - name: Install Dependencies

.github/workflows/verify-node.yml

@@ -14,9 +14,8 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - '18'
-          - '20'
           - '22'
+          - '24'
           - 'latest'
 
     steps:
@@ -69,12 +68,12 @@ jobs:
 
       - uses: actions/checkout@v4
 
-      - name: Setup Node '20'
+      - name: Setup Node '22'
         uses: actions/setup-node@v4
         env:
           FORCE_COLOR: 0
         with:
-          node-version: '20'
+          node-version: '22'
           cache: 'npm'
 
       # Set up GitHub Actions caching for Wireit.