ci: add release-please pipeline for changelog and npm publish

Add CI workflow (check/lint/test/build), release-please config and
manifest anchored at 0.3.0, and a prepack build hook so publish ships
a fresh dist. Mirrors the pi-repair-layer release automation pattern.

Author: r3b1s

.github/workflows/ci.yml

@@ -0,0 +1,86 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: pnpm/action-setup@v6
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 22
+          cache: pnpm
+
+      - run: pnpm install --frozen-lockfile
+
+      - name: Typecheck
+        run: pnpm run check
+
+      - name: Lint
+        run: pnpm run lint
+
+      - name: Test
+        run: pnpm run test
+
+      - name: Build
+        run: pnpm run build
+
+  release-please:
+    needs: [check]
+    if: github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      issues: write
+      pull-requests: write
+    outputs:
+      release_created: ${{ steps.release.outputs.release_created }}
+    steps:
+      - uses: googleapis/release-please-action@v5
+        id: release
+        with:
+          token: ${{ secrets.RELEASE_PLEASE_TOKEN }}
+          config-file: release-please-config.json
+          manifest-file: .release-please-manifest.json
+
+  publish:
+    needs: release-please
+    if: needs.release-please.result == 'success' && needs.release-please.outputs.release_created == 'true'
+    runs-on: ubuntu-latest
+    environment:
+      name: Release
+      url: https://www.npmjs.com/package/@r3b1s/tmux-pilot
+    permissions:
+      contents: read
+      id-token: write
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: pnpm/action-setup@v6
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: 22
+          registry-url: "https://registry.npmjs.org"
+          cache: pnpm
+
+      - run: pnpm install --frozen-lockfile
+
+      - name: Publish
+        env:
+          NPM_CONFIG_PROVENANCE: true
+        run: pnpm publish --access public --no-git-checks --provenance

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.3.0"
+}

package.json

@@ -46,6 +46,7 @@
     "test": "vitest run",
     "lint": "biome check src/ test/",
     "format": "biome check --write src/ test/",
+    "prepack": "pnpm run build",
     "clean": "rm -rf dist node_modules coverage"
   },
   "pi": {

release-please-config.json

@@ -0,0 +1,22 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "packages": {
+    ".": { "component": "tmux-pilot" }
+  },
+  "include-v-in-tag": true,
+  "include-component-in-tag": true,
+  "release-type": "node",
+  "changelog-sections": [
+    { "type": "feat", "section": "Features" },
+    { "type": "fix", "section": "Bug Fixes" },
+    { "type": "perf", "section": "Performance Improvements" },
+    { "type": "revert", "section": "Reverts" },
+    { "type": "docs", "section": "Documentation" },
+    { "type": "style", "section": "Styles", "hidden": true },
+    { "type": "chore", "section": "Miscellaneous Chores" },
+    { "type": "refactor", "section": "Code Refactoring", "hidden": true },
+    { "type": "test", "section": "Tests", "hidden": true },
+    { "type": "build", "section": "Build System", "hidden": true },
+    { "type": "ci", "section": "Continuous Integration", "hidden": true }
+  ]
+}