Migrate from pnpm to Bun for web and packages

- Replace pnpm with bun in root `mise.toml` and git hooks
- Migrate `apps/web` to use bun (package.json, mise.toml, Dockerfile)
- Migrate `packages/design-tokens` and `packages/i18n` to use bun
- Remove pnpm workspace config and lockfiles
- Update `deploy-web.yml` and `review.yml` to use bun
- Update documentation (README, WHY) to reference bun instead of pnpm

Author: google-labs-jules[bot]

.github/workflows/review.yml

@@ -32,8 +32,8 @@ jobs:
             Note this PR might be rejected due to its size.
           github_api_url: "https://api.github.com"
           files_to_ignore: |
-            pnpm-lock.yaml
-            **/pnpm-lock.yaml
+            bun.lock
+            **/bun.lock
             package-lock.json
             **/package-lock.json
             yarn.lock
@@ -63,19 +63,13 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: pnpm/action-setup@v4
+      - uses: oven-sh/setup-bun@v2
         with:
-          version: 10
-
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 24
-          cache: pnpm
-          cache-dependency-path: apps/web/pnpm-lock.yaml
+          bun-version: latest
 
       - name: Install dependencies
         working-directory: apps/web
-        run: pnpm install --frozen-lockfile
+        run: bun install --frozen-lockfile
 
       - uses: reviewdog/action-setup@v1
 
@@ -84,7 +78,7 @@ jobs:
           REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         working-directory: apps/web
         run: |
-          pnpm biome check src --reporter=json 2>&1 | \
+          bun run biome check src --reporter=json 2>&1 | \
           jq -r '.diagnostics[] | {
             message: .message,
             location: {

apps/web/src/config/messages/en.json

@@ -8,5 +8,10 @@
     "cancel": "Cancel",
     "confirm": "Confirm",
     "delete": "Delete"
-  }
+  },
+  "loginWelcome": "Welcome to Fullstack Starter",
+  "loginSubtitle": "Get started with your social account",
+  "continueWithGoogle": "Continue with Google",
+  "continueWithFacebook": "Continue with Facebook",
+  "continueWithGithub": "Continue with GitHub"
 }

apps/web/src/config/messages/ja.json

@@ -8,5 +8,10 @@
     "cancel": "キャンセル",
     "confirm": "確認",
     "delete": "削除"
-  }
+  },
+  "loginWelcome": "フルスタックスターターへようこそ",
+  "loginSubtitle": "ソーシャルアカウントで簡単に始めましょう",
+  "continueWithGoogle": "Googleで始める",
+  "continueWithFacebook": "Facebookで始める",
+  "continueWithGithub": "GitHubで始める"
 }

apps/web/src/config/messages/ko.json

@@ -8,5 +8,10 @@
     "cancel": "취소",
     "confirm": "확인",
     "delete": "삭제"
-  }
+  },
+  "loginWelcome": "풀스택 스타터에 오신 것을 환영합니다",
+  "loginSubtitle": "소셜 계정으로 간편하게 시작하세요",
+  "continueWithGoogle": "구글로 시작하기",
+  "continueWithFacebook": "페이스북으로 시작하기",
+  "continueWithGithub": "깃허브로 시작하기"
 }