feat: rename package to @aztec/mcp-server with CI and automated releases

- Rename npm package from aztec-mcp-server to @aztec/mcp-server
- Update repository URL to aztecprotocol/mcp-server
- Add publishConfig for public scoped package access
- Add GitHub Actions CI workflow with test and release jobs
- Add semantic-release for automatic versioning and npm publishing
- Add commitlint to enforce conventional commit messages on PRs

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

Author: critesjosh

.github/workflows/ci.yml

@@ -0,0 +1,57 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  commitlint:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - run: npm ci
+      - name: Lint commits
+        run: npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - run: npm ci
+      - run: npm test
+      - run: npm run build
+
+  release:
+    needs: test
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    permissions:
+      contents: write
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          registry-url: https://registry.npmjs.org
+      - run: npm ci
+      - run: npm run build
+      - name: Release
+        run: npx semantic-release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

.releaserc.json

@@ -0,0 +1,9 @@
+{
+  "branches": ["main"],
+  "plugins": [
+    "@semantic-release/commit-analyzer",
+    "@semantic-release/release-notes-generator",
+    "@semantic-release/npm",
+    "@semantic-release/github"
+  ]
+}

commitlint.config.js

@@ -0,0 +1 @@
+export default { extends: ['@commitlint/config-conventional'] };