0aa1287ca6
final_output removal: - Remove final_output from tool definitions and dispatch - Update system prompts to request summaries as regular text - Remove final_output_called field from StreamingState - Update auto_continue tests to remove final_output_called parameter - Remove final_output test from tool_execution_test.rs - Update planner and flock prompts to not reference final_output - Keep backwards-compat code in feedback_extraction.rs and task_result.rs Scout report handback: - Change from file-based to delimiter-based report extraction - Scout outputs report between ---SCOUT_REPORT_START/END--- markers - Research tool extracts content between markers, strips ANSI codes - Add comprehensive tests for extraction and ANSI stripping 657 tests pass.