Remote session uploader: slower tool-input flushing, metadata saved at shutdown

What

This applies to remote sessions, where Claude Code runs on a remote worker and streams its progress back. The part of Claude Code that sends updates from that worker, called the CCR client, changed in several ways:

• Large tool inputs: when Claude prepares the input for a tool (an action such as editing a file or running a command), that input arrives in small pieces called input_json deltas. Updates for large ones are now sent on a slower timer, controlled by toolInputFlushMs and set through a new setToolInputFlushMs setting. A new ccr_tool_input_flush event is logged. Before, all stream updates used one shared interval.
• Shutdown: when the session ends, any worker metadata still waiting to be sent is now flushed. The result is logged as cli_worker_metadata_at_shutdown, with an outcome of drained, timed_out, cut or refused. Before, shutdown flushed only internal events and client events.
• Live rows: live updates are now stamped with live_turn_id, live_index and emitted_at_ms.
• Status markers: the client adds ridesAStatus: ["reply_degraded", "card_turn_stamp"].
• Housekeeping requests: housekeeping control requests are now marked so their ids are tracked.
• Dropped batches: lastTaskList is cleared when batches of durable events are dropped.

Why

These are mostly behind-the-scenes changes to remote sessions. In practice, large tool inputs should cause fewer separate uploads, and session metadata that has not been sent yet is no longer simply abandoned when the session exits.