🚀 Chore(ci/cd): improve the joint construction and deployment of Demo and Test content

- Demo: https://demo.fixit.lruihao.cn/
- Test: https://demo.fixit.lruihao.cn/test/

.github/workflows/test.yml

@@ -1,21 +0,0 @@
-name: FixIt Test Build
-on:
-  pull_request:
-    branches: [ main ]
-  workflow_dispatch:
-jobs:
-  Actions-Hugo-Check:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out repository code
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive  # Fetch Hugo themes (true OR recursive)
-          fetch-depth: 0         # Fetch all history for .GitInfo and .Lastmod
-      - name: Setup Hugo
-        uses: peaceiris/actions-hugo@v3
-        with:
-          hugo-version: ${{ vars.HUGO_VERSION || 'latest' }}
-          extended: true
-      - name: Build Hugo static files
-        run: hugo --source=test --themesDir ../.. --theme $PWD --gc --minify --logLevel info