Housekeeping: Remove unnecessary test and temporary files

- Removed test scripts (test_*.py, tts-debug-script.py)
- Removed test output files (tts_test_output.mp3, test-cors.html)
- Removed redundant static/js/app.js (using TypeScript dist/ instead)
- Removed outdated setup-script.sh
- Removed Python cache directory (__pycache__)
- Removed Claude IDE local settings (.claude/)
- Updated .gitignore with better patterns for:
  - Test files
  - Debug scripts
  - Claude IDE settings
  - Standalone compiled JS

This cleanup reduces repository size and removes temporary/debug files
that shouldn't be version controlled.

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

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

.gitignore

@@ -67,3 +67,15 @@ vapid_public.pem
 .master_key
 secrets.db
 *.key
+
+# Test files
+test_*.py
+*_test_output.*
+test-*.html
+*-debug-script.py
+
+# Claude IDE
+.claude/
+
+# Standalone compiled JS (use dist/ instead)
+static/js/app.js