ci: add codeql config

.github/workflows/codeql.yml

@@ -0,0 +1,62 @@
+name: "CodeQL Advanced"
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+  schedule:
+    - cron: '26 9 * * 2' # Run on Tuesday mornings, in addition to PRs
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    # Runner size impacts CodeQL analysis time. To learn more, please see:
+    #   - https://gh.io/recommended-hardware-resources-for-running-codeql
+    #   - https://gh.io/supported-runners-and-hardware-resources
+    #   - https://gh.io/using-larger-runners (GitHub.com only)
+    # Consider using larger runners or machines with greater resources for possible analysis time improvements.
+    runs-on: 'ubuntu-latest'
+    permissions:
+      # required for all workflows
+      security-events: write
+      # required to fetch internal or private CodeQL packs
+      packages: read
+      # only required for workflows in private repositories
+      actions: read
+      contents: read
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - language: java-kotlin
+            build-mode: manual
+          - language: javascript-typescript
+            build-mode: none
+          - language: python
+            build-mode: none
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+          build-mode: ${{ matrix.build-mode }}
+      - if: matrix.language == 'java-kotlin' && matrix.build-mode == 'manual'
+        name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          java-version: "21"
+          distribution: "adopt"
+      - if: matrix.language == 'java-kotlin' && matrix.build-mode == 'manual'
+        name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+      - if: matrix.language == 'java-kotlin' && matrix.build-mode == 'manual'
+        shell: bash
+        run: |
+          cd backend
+          export JAVA_OPTS="-Xmx4096m"
+          ./gradlew --no-daemon -Dorg.gradle.jvmargs=-Xmx1g build --info --stacktrace -x ktlintCheck -x test
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: "/language:${{matrix.language}}"