Revert "feat: add separate pages-dev-server background job"

This reverts commit c06b261c65.

.github/workflows/release-pages.yml

@@ -14,35 +14,6 @@ on:
   workflow_dispatch:
 
 jobs:
-  pages-dev-server:
-    runs-on: ubuntu-latest
-    if: github.event_name == 'workflow_dispatch' || github.event_name == 'push' || github.event.workflow_run.conclusion == 'success'
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v5
-
-      - name: Install bun
-        uses: oven-sh/setup-bun@v2
-        with:
-          bun-version: latest
-
-      - name: Install pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 10
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v5
-        with:
-          node-version: '24'
-          cache: 'pnpm'
-
-      - name: Install dependencies
-        run: pnpm install --frozen-lockfile
-
-      - name: Run pages dev server
-        run: bun pages:dev
-
   incremental-build:
     runs-on: ubuntu-latest
     # Only run if the triggering workflow succeeded (or manual dispatch/push)