chore: migrate package manager from pnpm to bun

- add packageManager bun@1.3.5 to root and worker package.json
- replace pnpm-lock.yaml with bun.lock (root + worker)
- remove pnpm-workspace.yaml (bun blocks postinstall by default,
  matching previous ignoredBuiltDependencies behavior)
- ci: switch deploy workflow to oven-sh/setup-bun
- docs: simplify README install commands

Author: gracefullight

.github/workflows/deploy.yml

@@ -20,18 +20,13 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: pnpm/action-setup@v4
+      - uses: oven-sh/setup-bun@v2
         with:
-          version: 10
+          bun-version: 1.3.5
 
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 22
-          cache: pnpm
-
-      - run: pnpm install --frozen-lockfile
+      - run: bun install --frozen-lockfile
 
-      - run: pnpm build
+      - run: bun run build
         env:
           NEXT_TELEMETRY_DISABLED: "1"
           NEXT_PUBLIC_CONTACT_API_URL: ${{ vars.NEXT_PUBLIC_CONTACT_API_URL }}

README.md

@@ -2,15 +2,10 @@ This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-
 
 ## Getting Started
 
-First, run the development server:
+First, install dependencies and run the development server:
 
 ```bash
-npm run dev
-# or
-yarn dev
-# or
-pnpm dev
-# or
+bun install
 bun dev
 ```
 

bun.lock

@@ -2,6 +2,7 @@
   "name": "web",
   "version": "0.1.0",
   "private": true,
+  "packageManager": "bun@1.3.5",
   "scripts": {
     "dev": "next dev",
     "build": "next build",