TML-3061: record preservation audit dispatch

Signed-off-by: Alexey Orlenko's AI Agent <robot@aqrln.net>

Author: tensordreams

projects/codec-json-projections/trace.jsonl

@@ -98,3 +98,5 @@
 {"event_id":"2a717adf-ee64-46d9-9af7-8b1c41e14116","schema_version":"1","ts":"2026-07-23T19:36:43.465Z","project_run_id":"codec-json-projections","orchestrator_agent_id":null,"event_type":"dispatch-start","dispatch_id":"9d000c87-4172-4182-96b1-bf55c8d8c942","dispatch_name":"D9 preservation audit and slice gate","subagent_type":"implementer/thorough","model":null,"parent_dispatch_id":"f6d30631-9c41-4374-a113-a6a893e729c7"}
 {"event_id":"61c4c120-d623-46e7-93a3-26ba33de7cb7","schema_version":"1","ts":"2026-07-23T19:36:43.919Z","project_run_id":"codec-json-projections","orchestrator_agent_id":null,"event_type":"round-start","dispatch_id":"9d000c87-4172-4182-96b1-bf55c8d8c942","round_id":"3f2cc3a3-00fe-44cb-9b94-9bee5fe19c64","round_number":1}
 {"event_id":"14326993-9550-482c-a019-99cc5f4eb80a","schema_version":"1","ts":"2026-07-23T19:36:44.398Z","project_run_id":"codec-json-projections","orchestrator_agent_id":null,"event_type":"brief-issued","dispatch_id":"9d000c87-4172-4182-96b1-bf55c8d8c942","round_id":"3f2cc3a3-00fe-44cb-9b94-9bee5fe19c64","brief_byte_length":6222,"brief_content_hash":"fe8ae5a8f0a89cb2e20bec052298d81f574dc775bafb4bf576c5f47a0d27db28","brief_disposition":"initial"}
+{"event_id":"43a15f83-4bf5-40d7-bf09-062d09810b7e","schema_version":"1","ts":"2026-07-23T22:15:23.345Z","project_run_id":"codec-json-projections","orchestrator_agent_id":null,"event_type":"round-end","dispatch_id":"9d000c87-4172-4182-96b1-bf55c8d8c942","round_id":"3f2cc3a3-00fe-44cb-9b94-9bee5fe19c64","verdict":"satisfied","findings_filed":0,"wall_clock_ms":9499971}
+{"event_id":"b0919075-7337-4058-b38d-62c7983b9846","schema_version":"1","ts":"2026-07-23T22:15:23.854Z","project_run_id":"codec-json-projections","orchestrator_agent_id":null,"event_type":"dispatch-end","dispatch_id":"9d000c87-4172-4182-96b1-bf55c8d8c942","result":"completed","wall_clock_ms":9500425}