Clean up BZZZ development detritus and enhance .gitignore

Major cleanup of development artifacts and obsolete files:

REMOVED:
- archived/2025-07-17/ directory (11 outdated development files)
- old-docs/ directory (10 obsolete documentation files)
- Compiled binaries: bzzz-port3333, test/bzzz-chat-api
- Development scripts: intensive_coordination_test.sh, start_bzzz_with_mock_api.sh,
  test_hmmm_monitoring.sh, trigger_mock_coordination.sh
- Test artifacts: test/run_chat_api.sh, test/test_chat_api.py
- Empty data/chat-api-logs/ directory

ENHANCED:
- Updated .gitignore with comprehensive patterns to prevent future artifact accumulation
- Added patterns for compiled binaries, build artifacts, logs, temporary files
- Included development-specific ignores for archived/, old-docs/, test artifacts

PRESERVED:
- All Phase 2B documentation in docs/
- Essential deployment scripts (install-service.sh, uninstall-service.sh, deploy-bzzz-cluster.sh)
- Project status tracking (PROJECT_TODOS.md, README.md)
- Core source code and production configurations

Space saved: ~95MB of development detritus removed
Project is now clean and production-ready with enhanced artifact prevention

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

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

.gitignore

@@ -1,5 +1,6 @@
-# Binaries
+# Compiled binaries
 bzzz
+bzzz-*
 *.exe
 *.exe~
 *.dll
@@ -11,10 +12,16 @@ bzzz
 
 # Output of the go coverage tool
 *.out
+coverage.out
 
 # Go workspace file
 go.work
 
+# Build artifacts
+target/
+dist/
+build/
+
 # IDE files
 .vscode/
 .idea/
@@ -28,9 +35,21 @@ go.work
 ehthumbs.db
 Thumbs.db
 
-# Logs
+# Logs and data
 *.log
+logs/
+data/chat-api-logs/
 
 # Temporary files
 *.tmp
 *.temp
+*~
+*.bak
+
+# Development artifacts
+archived/
+old-docs/
+
+# Test artifacts  
+test/bzzz-*
+test/*.sh