Captures the last 10 messages from AgentAPI when task workspaces stop,
allowing users to view conversation history while the task is paused.
The shutdown script fetches messages, builds a payload with last 10
messages, truncates to 64KB if needed (removes old messages first, then
truncates content of the last message), and posts to the log snapshot
endpoint.
Gracefully handles non-task workspaces (skips), older Coder versions
without the endpoint (logs and continues), and empty message sets.
Enabled by default via task_log_snapshot variable. Task ID is
automatically resolved from data.coder_task when available.
Updates coder/internal#1257
fa30191394