chore: migrate from Bun to pnpm

.github/pull_request_template.md

@@ -2,5 +2,5 @@
 
 - [ ] Add tests
 - [ ] Run tests
-- [ ] `bun run format:fix && bun run lint:fix` to format the code
+- [ ] `pnpm run format:fix && pnpm run lint:fix` to format the code
 - [ ] Add [TSDoc](https://tsdoc.org/)/[JSDoc](https://jsdoc.app/about-getting-started) to document the code

.github/workflows/ci.yml

@@ -14,26 +14,30 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [20, 22, 24]
+        node-version: [22, 24, 26]
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
-      - name: Install Bun
-        uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2
+      - name: Install pnpm
+        uses: pnpm/action-setup@b906affcce14559ad1aafd4ab0e942779e9f58b1 # v4
+
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
         with:
-          bun-version-file: .tool-versions
+          node-version: ${{ matrix.node-version }}
+          cache: pnpm
 
       - name: Install dependencies
-        run: bun install
+        run: pnpm install --frozen-lockfile
 
       - name: Run tests
-        run: bun run test:run
+        run: pnpm run test:run
 
       - name: Build
-        run: bun run build
+        run: pnpm run build
 
       - name: Lint
-        run: bun run lint
+        run: pnpm run lint
 
       - name: Format check
-        run: bun run format
+        run: pnpm run format

.github/workflows/cr.yml

@@ -27,20 +27,20 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Install pnpm
+        uses: pnpm/action-setup@b906affcce14559ad1aafd4ab0e942779e9f58b1 # v4
+
       - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
         with:
           node-version-file: .tool-versions
-
-      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2
-        with:
-          bun-version-file: .tool-versions
+          cache: pnpm
 
       - name: Install Dependencies
-        run: bun install --frozen-lockfile
+        run: pnpm install --frozen-lockfile
 
       - name: Build
-        run: bun run build
+        run: pnpm run build
 
       - name: Publish to StackBlitz
         run: |
-          bun pkg-pr-new publish --compact
+          pnpm exec pkg-pr-new publish --compact

.tool-versions

@@ -1,4 +1,3 @@
-bun 1.3.9
 # TODO: Update to v2.x when https://github.com/jsr-io/jsr-npm/issues/129 is resolved
 deno 2.6.9
 node 22.22.0

AGENTS.md

@@ -10,13 +10,13 @@ made for coding agents, not humans.
 
 ## Commands
 
-- `bun install` — install dependencies
-- `bun run build` — build (tsdown)
-- `bun run watch` — build with auto-rebuild
-- `bun run test` — run tests (Vitest)
-- `bun run format:fix && bun run lint:fix` — fix format and lint
+- `pnpm install` — install dependencies
+- `pnpm run build` — build (tsdown)
+- `pnpm run watch` — build with auto-rebuild
+- `pnpm run test` — run tests (Vitest)
+- `pnpm run format:fix && pnpm run lint:fix` — fix format and lint
 
-Runtime: Node.js 20+. Package manager: Bun.
+Runtime: Node.js 22+. Package manager: pnpm.
 
 ## Architecture
 
@@ -41,9 +41,9 @@ Runtime: Node.js 20+. Package manager: Bun.
 3. Run the quality gates. All must pass:
 
    ```bash
-   bun run format:fix && bun run lint:fix
-   bun run test
-   bun run build
+   pnpm run format:fix && pnpm run lint:fix
+   pnpm run test
+   pnpm run build
    ```
 
 4. Commit with conventional commits: `<type>(<scope>): <description>`.

package.json

@@ -16,7 +16,7 @@
     "format": "prettier src --check",
     "format:fix": "prettier src --write",
     "postbuild": "publint",
-    "prerelease": "bun run build",
+    "prerelease": "pnpm run build",
     "release": "np"
   },
   "files": [
@@ -54,5 +54,8 @@
     "typescript": "^5.9.3",
     "vitest": "^3.2.4"
   },
-  "packageManager": "bun@1.2.20"
+  "packageManager": "pnpm@11.20.0",
+  "engines": {
+    "node": ">=22.13.0"
+  }
 }