fix(deploy): pnpm install before wrangler deploy

Wrangler bundles cloudflare/worker.ts which imports @cloudflare/containers
from workspace node_modules. Without pnpm install the bundle fails:
  Could not resolve '@cloudflare/containers'

Add pnpm + node setup + frozen lockfile install in both cloud and
objectos jobs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: hotlong

.github/workflows/deploy.yml

@@ -122,10 +122,22 @@ jobs:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Set up pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - name: Set up Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Install workspace deps (for wrangler bundle)
+        run: pnpm install --frozen-lockfile --prefer-offline
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-
-      - name: Build cloud image (local)
         uses: docker/build-push-action@v6
         with:
           context: .
@@ -210,6 +222,20 @@ jobs:
           fetch-depth: 0
           token: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Set up pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - name: Set up Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Install workspace deps (for wrangler bundle)
+        run: pnpm install --frozen-lockfile --prefer-offline
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3