Add PyPI build workflow and docs

Introduce a new GitHub Actions workflow (build-pypi.yml) to build Python Wheel and Source Distribution and upload them as release assets. Integrate the PyPI job into the release-all workflow and update .github/CI_CD_README.md to document the PyPI artifacts and the new build-pypi.yml entry. The workflow uses Python 3.13, installs build tooling, runs build_release.py, and uploads dist/* via softprops/action-gh-release.

.github/workflows/build-pypi.yml

@@ -0,0 +1,49 @@
+name: Build PyPI Package
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Version name for the release (e.g., 1.0.0)'
+        required: true
+        type: string
+  workflow_call:
+    inputs:
+      version:
+        description: 'Version name for the release (e.g., 1.0.0)'
+        required: true
+        type: string
+
+permissions:
+  contents: write
+
+jobs:
+  build-pypi:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v6
+    
+    - name: Set up Python
+      uses: actions/setup-python@v6
+      with:
+        python-version: '3.13'
+
+    - name: Install build dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install build
+        
+    - name: Build PyPI package
+      run: |
+        python build_release.py
+
+    - name: Upload Release Assets
+      uses: softprops/action-gh-release@v2
+      with:
+        tag_name: v${{ inputs.version || github.event.inputs.version }}
+        files: |
+          dist/*
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release-all.yml

@@ -29,3 +29,9 @@ jobs:
     with:
       version: ${{ inputs.version }}
     secrets: inherit
+
+  release-pypi:
+    uses: ./.github/workflows/build-pypi.yml
+    with:
+      version: ${{ inputs.version }}
+    secrets: inherit