test: add MCP tool tests + coverage config + CI workflow

- Add tests/mcp-tools.test.ts: 47 tests covering all 15 MCP tools,
  2 prompts, 3 resources via Client + InMemoryTransport
- Add tests/graph-store.test.ts: 5 tests for full graph-store coverage
- Configure vitest coverage: v8 provider, 80% thresholds, exclude
  cli.ts and types/
- Add .github/workflows/ci.yml: lint/typecheck/build/test on PRs,
  Node 18/20/22 matrix, auto-publish to npm on v* tags

Coverage: 64.95% → 96.3% statements, 85.47% branch, 98.18% functions

Author: bntvllnt

.github/workflows/ci.yml

@@ -0,0 +1,73 @@
+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+    tags: ["v*"]
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18, 20, 22]
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: pnpm
+
+      - run: pnpm install --frozen-lockfile
+
+      - name: Lint
+        run: pnpm lint
+
+      - name: Typecheck
+        run: pnpm typecheck
+
+      - name: Build
+        run: pnpm build
+
+      - name: Test with coverage
+        run: pnpm test -- --coverage
+
+      - name: Upload coverage
+        if: matrix.node-version == 22
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-report
+          path: coverage/
+
+  publish:
+    needs: ci
+    if: startsWith(github.ref, 'refs/tags/v')
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: pnpm
+          registry-url: https://registry.npmjs.org
+
+      - run: pnpm install --frozen-lockfile
+
+      - name: Build
+        run: pnpm build
+
+      - name: Publish to npm
+        run: npm publish --access public --provenance
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

package.json

@@ -52,6 +52,7 @@
   "devDependencies": {
     "@eslint/js": "^10.0.1",
     "@types/node": "^22.0.0",
+    "@vitest/coverage-v8": "^3.2.4",
     "eslint": "^10.0.0",
     "tsx": "^4.21.0",
     "typescript-eslint": "^8.56.0",