Updated the analyze stage to accept --artifacts as a CLI flag

docs/internal/stage-archive.md

@@ -52,10 +52,12 @@ Does not own:
 - Resolves bucket/prefix from manifest identity first, then config fallback.
 - Uploads session `previous/**` files as durable session state when the local `previous/` directory exists.
 - Skips top-level promotion uploads for effective locked sources; run-local uploads still publish.
+- When selected configured artifact keys are supplied, skips promotion rules for unselected `narratio.artifact.<key>` sources; built-in transcript and bounds promotions still publish.
 - Effective locks are the union of `pipeline.archive.locks` and remote `{session_prefix}/locks.yml`; static pipeline locks win on duplicate sources.
 - Writes metadata including:
   - upload counts/paths
   - `previous_files_uploaded` and `previous_uploaded_paths`
+  - `skipped_unselected_promotions`
   - `locked_promotion_count` and `locked_promotions`
   - `current_manifest_key`
   - `current_run_id_key`