ci: add Python data tools workflow

Create dedicated workflow for Python dictionary data tools that runs
independently from Xcode builds. This ensures Python-only changes get
proper CI validation without triggering expensive macOS runners.

Triggers when:
- Python files in Source/Data/ change
- curation/ package files change
- Makefile or pyproject.toml change

Runs on:
- Ubuntu (cost-effective)
- Only tests data file validation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: tianjianjiang

.github/workflows/python-data-check.yml

@@ -0,0 +1,28 @@
+name: Python Data Tools
+
+on:
+  push:
+    paths:
+      - 'Source/Data/**/*.py'
+      - 'Source/Data/curation/**'
+      - 'Source/Data/scripts/**'
+      - 'Source/Data/pyproject.toml'
+      - 'Source/Data/Makefile'
+      - '.github/workflows/python-data-check.yml'
+  pull_request:
+    paths:
+      - 'Source/Data/**/*.py'
+      - 'Source/Data/curation/**'
+      - 'Source/Data/scripts/**'
+      - 'Source/Data/pyproject.toml'
+      - 'Source/Data/Makefile'
+      - '.github/workflows/python-data-check.yml'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Test data files
+        run: make check
+        working-directory: Source/Data