Add the tools sub-project with the run_llm batch runner

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tools/.gitignore

@@ -0,0 +1,23 @@
+# Tools for A Feminist Audit of Pop Music.
+# Copyright 2026 imacat.  All rights reserved.
+# Authors:
+#   imacat@mail.imacat.idv.tw (imacat), 2026/7/31
+
+*.pyc
+__pycache__
+build
+dist
+*.egg-info
+.pytest_cache
+venv
+
+.DS_Store
+.idea
+.claude
+
+.scannerwork
+sonar-project.properties
+
+.env
+instance
+test_temp.py