feat: migrate from yarn to bun

.cursor/worktrees.json

@@ -0,0 +1,5 @@
+{
+  "setup-worktree": [
+    "bun install"
+  ]
+}

.github/workflows/docs-build-pr.yml

@@ -26,19 +26,11 @@ jobs:
         with:
           submodules: true
 
-      - name: Enable Corepack
-        run: corepack enable
-
-      - name: Pin Yarn 4.9.1
-        run: corepack prepare yarn@4.9.1 --activate
-
-      - name: Use Node.js 20.x
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20.18.1
+      - name: Install Bun
+        uses: oven-sh/setup-bun@v2
 
       - name: Install dependencies
-        run: yarn install --immutable
+        run: bun install --frozen-lockfile
 
       - name: Build
-        run: yarn build
+        run: bun run build

.github/workflows/docs-deploy-main.yml

@@ -2,6 +2,10 @@
 
 name: Deploy Docs to Production
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   push:
     branches:
@@ -36,31 +40,16 @@ jobs:
         with:
           submodules: true
 
+      - name: Install Bun
+        uses: oven-sh/setup-bun@v2
+
       - name: Use Node.js 20.x
         uses: actions/setup-node@v4
         with:
           node-version: 20.18.1
 
-      - name: Enable Corepack
-        run: corepack enable
-
       - name: Install dependencies
-        run: yarn install
-
-      - name: Create GitHub Deployment
-        id: create_deployment
-        uses: chrnorm/deployment-action@v2
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          environment: production
-          ref: ${{ github.sha }}
-
-      - name: Mark deployment in progress
-        uses: chrnorm/deployment-status@v2
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          deployment-id: ${{ steps.create_deployment.outputs.deployment_id }}
-          state: in_progress
+        run: bun install --frozen-lockfile
 
       - name: Generate production env file
         run: |
@@ -104,13 +93,25 @@ jobs:
           }
           EOF
 
+      - name: Build OpenNext (no deployment)
+        run: |
+          set -e
+          bun run build:prep
+          bunx opennextjs-cloudflare build --config wrangler.jsonc
+
+      - name: Create GitHub Deployment
+        id: create_deployment
+        uses: chrnorm/deployment-action@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          environment: production
+          ref: ${{ github.sha }}
+
       - name: Deploy to Cloudflare Workers (Production)
         id: deploy
         run: |
           set -e
-          yarn build:prep
-          yarn opennextjs-cloudflare build --config wrangler.jsonc
-          OUTPUT=$(yarn opennextjs-cloudflare deploy --config wrangler.jsonc)
+          OUTPUT=$(bunx opennextjs-cloudflare deploy --config wrangler.jsonc)
           echo "$OUTPUT"
           # Extract deployment URL if available
           DEPLOYMENT_URL=$(echo "$OUTPUT" | grep -oE 'https://[^ ]+' | head -1)