Feishu Cli Chat

This is your complete Feishu chat operations toolkit: pull chat histories with automatic thread expansion, search for groups, manage reactions and pins, and handle group member administration. The standout piece is the Python script that handles the full pipeline of fetching time-windowed messages, expanding threads, resolving sender names across three fallback levels, and rendering everything into a readable timeline. External group operations are well-documented since they require special app permissions and bot membership. Built for the common case of "pull the last 24 hours from this group with all replies intact," which turns out to involve enough edge cases around name resolution and card rendering that wrapping it in one command actually saves time.