- Added /autonomous/join-conversation API endpoint in api.py
- Added 'Detect and Join Conversation' button to Web UI under Autonomous Actions
- Added 'autonomous join-conversation' command to CLI tool (miku-cli.py)
- Updated miku_detect_and_join_conversation_for_server to support force=True parameter
- When force=True: skips time limit, activity checks, and random chance
- Force mode uses last 10 user messages regardless of age
- Manual triggers via Web UI/CLI now work even with old messages
- Created miku-cli.py: Full-featured CLI for Miku bot API
- Added interactive shell mode for continuous command execution
- Implemented all API endpoints: status, mood, autonomous, DM, blocking, profile pictures
- Consistent hyphenated command naming across shell and regular modes
- Created API_REFERENCE.md: Complete API endpoint documentation
- Created CLI_README.md: User guide with examples and usage instructions
- Error handling and user-friendly output formatting
