chore: add CodeQL security scan workflow for automated analysis (#525)

* chore: add CodeQL security scan workflow for automated analysis

* fix: improve readability of comments in CellDataReadDemoData and WebTest classes

Author: alaahong

.github/workflows/codeql-scan.yml

@@ -0,0 +1,35 @@
+name: CodeQL Security Scan
+
+on:
+  push:
+    branches:
+      - master
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened]
+  schedule:
+    - cron: '0 0 * * *' # 每天0点自动扫描
+
+jobs:
+  codeql:
+    name: CodeQL Analysis
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'java' ]
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+      - name: Build with Maven
+        run: mvn clean install -DskipTests
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3