chore: set up changeset and github workflows

Author: iamkyrylo

.changeset/README.md

@@ -0,0 +1,8 @@
+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets)
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

.changeset/config.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://unpkg.com/@changesets/[email protected]/schema.json",
+  "changelog": "@changesets/changelog-github",
+  "commit": false,
+  "fixed": [],
+  "linked": [],
+  "access": "public",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.github/workflows/ci.yml

@@ -0,0 +1,46 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  checks:
+    name: Build checks (Node ${{ matrix.node }})
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node: [18, 20, 22]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node }}
+          cache: 'pnpm'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Install
+        run: pnpm install --frozen-lockfile
+
+      - name: Lint
+        run: pnpm check:lint
+
+      - name: Format
+        run: pnpm check:format
+
+      - name: Typecheck
+        run: pnpm check:types
+
+      - name: Test
+        run: pnpm test:all
+
+      - name: Build (smoke)
+        run: pnpm build

.github/workflows/release.yml

@@ -0,0 +1,44 @@
+name: Release
+
+on:
+  push:
+    branches: [main]
+
+permissions:
+  contents: write
+  pull-requests: write
+  id-token: write  # required for npm provenance
+
+jobs:
+  release:
+    name: Version & Publish
+    runs-on: ubuntu-latest
+    environment: npm-publish   # protect this environment with required reviewers
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          registry-url: 'https://registry.npmjs.org'
+          cache: 'pnpm'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Install
+        run: pnpm install --frozen-lockfile
+
+      # This action either opens/updates the "Version Packages" PR,
+      # or, if we're on main AND that PR has been merged, it will run "pnpm release"
+      - name: Changesets
+        id: changesets
+        uses: changesets/action@v1
+        with:
+          publish: pnpm release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

package.json

@@ -32,7 +32,9 @@
     }
   },
   "types": "./lib/dist/index.d.ts",
-  "files": ["lib/dist/"],
+  "files": [
+    "lib/dist/"
+  ],
   "scripts": {
     "check:lint": "eslint lib/src --ext .ts",
     "check:format": "prettier --check \"lib/src/**/*.ts\"",
@@ -47,9 +49,16 @@
     "test:watch": "vitest",
     "build": "tsup lib/src/index.ts --dts --out-dir lib/dist",
     "build:checks": "pnpm check:all && pnpm test:all && pnpm build",
-    "prepack": "pnpm build"
+    "prepack": "pnpm build",
+    "release": "pnpm build && changeset publish"
+  },
+  "publishConfig": {
+    "access": "public",
+    "provenance": true
   },
   "devDependencies": {
+    "@changesets/changelog-github": "^0.5.1",
+    "@changesets/cli": "^2.29.7",
     "@eslint/js": "^9.27.0",
     "@eslint/json": "^0.12.0",
     "@types/node": "^22.15.21",
@@ -68,6 +77,8 @@
     "typescript-eslint": "^8.32.1",
     "vitest": "^3.1.4"
   },
-  "engines": { "node": ">=18" },
+  "engines": {
+    "node": ">=18"
+  },
   "sideEffects": false
 }