build: Add step "Set fixed workspace"

.github/workflows/build.yml

@@ -53,8 +53,6 @@ env:
   REPO_LNK: openwrt-xiaomi/openwrt
   REPO_BRANCH: xq-25.12
   TAG_PREFIX: v25-
-  DEPENDENCIES: ${{ github.workspace }}/dependencies-ubuntu.txt
-  RUNNER_TEMP: ${{ github.workspace }}/_temp
   TZ: UTC
   DEVICE_NAME: unknown
   BUILD_DATE: unknown
@@ -186,9 +184,18 @@ jobs:
           remove-haskell: true
           remove-codeql: true
           remove-docker-images: true
-        
+
+      - name: Set fixed workspace
+        run: |
+          sudo mkdir -p /builder/openwrt /builder/tmp
+          sudo chown -R $USER:$USER /builder
+          echo "GITHUB_WORKSPACE=/builder/openwrt" >> $GITHUB_ENV
+          echo "RUNNER_TEMP=/builder/tmp" >> $GITHUB_ENV
+          
       - name: Checkout builder
         uses: actions/checkout@main
+        with:
+          path: /builder/openwrt
 
       - name: Download OpenWrt sources
         run: |
@@ -243,6 +250,8 @@ jobs:
       - name: Inspect restored host tools
         if: github.event.inputs.use_cache == 'true'
         run: |
+          echo "====== openwrt-native.txt ======"
+          cat build_dir/host/pkgconf-*/openwrt-native.txt || true
           echo "====== staging_dir/host ====="
           du -sh staging_dir/host || true
           ls -la staging_dir/host || true