Add post-archive cleanup policies

architecture.md

@@ -152,7 +152,8 @@ Storage and archive foundations:
   - `endpoint`
   - `force_path_style` (default `false`)
 - `pipeline.spool.root` defaults to `/var/spool/narratio`
-- `pipeline.spool.delete_audio_after_archive` defaults to `false` (cleanup behavior not implemented yet)
+- `pipeline.workspace.cleanup_after_archive` defaults to `false`
+- `pipeline.spool.delete_audio_after_archive` defaults to `false`
 - `pipeline.archive` is optional and defaults to:
   - `enabled: true`
   - `upload_run: true`
@@ -230,6 +231,13 @@ Archive publishing behavior (implemented):
   - `current/run_id.txt` is the effective commit marker
 - if promotion or current-manifest upload fails, archive returns failure and does not write `current/run_id.txt`
 - failed/incomplete runs remain local and are not uploaded
+- post-archive local cleanup (implemented, opt-in):
+  - cleanup runs only after archive succeeded and wrote `current/run_id.txt`
+  - cleanup is executed after all selected stages in the command invocation succeed (for example, a later `notify` failure leaves local files intact)
+  - `pipeline.spool.delete_audio_after_archive: true` removes only `{spool.root}/{campaign}/{session_id}/{run_id}/audio/`
+  - `pipeline.workspace.cleanup_after_archive: true` removes only `{workspace.root}/work/{campaign}/{session_id}/{run_id}/`
+  - cleanup does not run when archive is skipped/disabled/fails or when run upload is disabled
+  - local development `audio_dir`/`audio_files` inputs are never removed by spool cleanup
 
 `pipeline.scriptorium` is optional. Existing pipelines without Scriptorium continue to work.