v0.6.6

Feishu answer metadata

• Add an English-language footer to finalized assistant answers with the model, reasoning effort, current-turn token and cache usage, and context utilization when available.
• Keep the footer within Feishu's text budget and outside code blocks, including when a long answer is clipped or a partial answer ends inside a Markdown fence.

Reliable long-running chats

• Renew streaming cards before Feishu's ten-minute timeout and recover both timed-out and closed streams.
• Apply the same renewal and recovery path to the final write, so a quiet long-running turn does not fall back to a duplicate plain message merely because its card expired.

Command results in the chat

• Display slash-command results and errors in the requesting chat, including commands queued behind an active turn.
• Render supported command tables as Markdown tables and keep LF, CRLF, and CR line endings within their cells.
• Apply platform length and formatting limits to command results and their fallback messages. Keep the new UI labels in English.

Thanks to @contsun for the Feishu contributions in #91 and #92.

Full changelog: v0.6.5...v0.6.6