feat: add release highlights generator agentic workflow (#197)

* Initial plan

* feat: add release highlights generator agentic workflow

Co-authored-by: Mossaka <5447827+Mossaka@users.noreply.github.com>

* refactor: combine release highlights generator with release pipeline

Co-authored-by: Mossaka <5447827+Mossaka@users.noreply.github.com>

* feat: add dry run option to release workflow

Co-authored-by: Mossaka <5447827+Mossaka@users.noreply.github.com>

* fix: add version validation to prevent package.json/tag mismatches

Adds a validation step that checks package.json version matches the git tag
version before building. This prevents the issue where a tag is created on
a commit with the wrong version number, which caused the v0.9.0 release to
initially fail smoke tests.

The validation step provides clear error messages and remediation steps when
a mismatch is detected.

Resolves the root cause of workflow run 21004691307 failure.

* ci: add explicit CodeQL workflow to fix Python analysis error

GitHub's default CodeQL setup was attempting to analyze Python code,
but this repository only contains JavaScript/TypeScript and GitHub
Actions. The false detection was caused by a Python file in
node_modules (flatted/python/flatted.py).

This explicit workflow:
- Only analyzes javascript-typescript and actions languages
- Replaces the default setup with controlled configuration
- Prevents "no source code found" errors for Python
- Runs on PR, push to main, weekly schedule, and manual dispatch

Fixes the CodeQL failure in PR #197.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Mossaka <5447827+Mossaka@users.noreply.github.com>
Co-authored-by: Jiaxiao (mossaka) Zhou <duibao55328@gmail.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: 3 people

.github/workflows/codeql.yml

@@ -0,0 +1,52 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    # Run at 00:00 UTC every Monday
+    - cron: '0 0 * * 1'
+  workflow_dispatch:
+
+permissions:
+  actions: read
+  contents: read
+  security-events: write
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on: ubuntu-latest
+    timeout-minutes: 360
+
+    strategy:
+      fail-fast: false
+      matrix:
+        # Only analyze languages that exist in this repository
+        # Note: Python files found in node_modules should not trigger Python analysis
+        language: ['javascript-typescript', 'actions']
+        include:
+          - language: javascript-typescript
+            build-mode: none
+          - language: actions
+            build-mode: none
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v4
+        with:
+          languages: ${{ matrix.language }}
+          build-mode: ${{ matrix.build-mode }}
+          # Explicitly exclude node_modules and other non-source directories
+          # This prevents false Python detection from dependency files
+          queries: +security-extended,security-and-quality
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v4
+        with:
+          category: "/language:${{ matrix.language }}"