Add synthesis timing functionality to X bot
- Add --synthesis-interval and --synthesis-only command line arguments
- Import send_synthesis_message from bsky.py
- Add synthesis timing logic to x_main_loop similar to bsky.py
- Support synthesis-only mode for periodic reflection without notification processing
- Add synthesis interval checking with time-based triggers
The X bot now has the same synthesis capabilities as the Bluesky bot.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>