* fix(agents): normalize Command-wrapped tool results
Command-wrapped ToolMessages skipped result metadata and progress
tracking, so error receipts could be recorded as success.
* fix(agents): stamp error meta from subagent_status failures
Delegated task Commands leave ToolMessage.status at success and do not
use an Error: content prefix, so normalize_tool_message was labeling
failed/cancelled/timed_out results as success. Honor structured
subagent_status before content heuristics and cover the four statuses.
* style: ruff-format tool_result_meta tests
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Co-authored-by: Yuzhong Zhang <BetterAndBetterII@users.noreply.github.com>
