Adopt ConfigKit overlays for pipeline selection

examples/README.md

@@ -14,16 +14,16 @@ in the [configuration reference](../docs/config.md).
 - [Production-base/testing-overlay bundle](production-testing/pipeline.yml):
   explicit `conf.d` imports, one ordinary artifact per `artifacts/<key>.yml`,
   one family per `artifact-families/<key>.yml`, and the fixed
-  `profiles/testing.yml` overlay. Production values live in the base. The
+  `overlays/testing.yml` overlay. Production values live in the base. The
   bundle demonstrates an input-only artifact dependency, two character families
   sharing the campaign party, and a testing-only disabled artifact. Inspect it
   offline with:
 
   ```sh
   narratio config validate --config examples/production-testing/pipeline.yml --campaign-file examples/campaigns/sample-campaign/campaign.yml
-  narratio config show --config examples/production-testing/pipeline.yml --campaign-file examples/campaigns/sample-campaign/campaign.yml --profile testing
-  narratio config sources --config examples/production-testing/pipeline.yml --campaign-file examples/campaigns/sample-campaign/campaign.yml --profile testing
-  narratio config artifacts --config examples/production-testing/pipeline.yml --campaign-file examples/campaigns/sample-campaign/campaign.yml --profile testing
+  narratio config show --config examples/production-testing/pipeline.yml --campaign-file examples/campaigns/sample-campaign/campaign.yml --overlay testing
+  narratio config sources --config examples/production-testing/pipeline.yml --campaign-file examples/campaigns/sample-campaign/campaign.yml --overlay testing
+  narratio config artifacts --config examples/production-testing/pipeline.yml --campaign-file examples/campaigns/sample-campaign/campaign.yml --overlay testing
   narratio config diff default testing --config examples/production-testing/pipeline.yml --campaign-file examples/campaigns/sample-campaign/campaign.yml
   ```
 

examples/pipeline.full.annotated.yml

@@ -135,7 +135,7 @@ notarius:
   # the selected Notarius/PromptKit profile; never put the credential here.
   llm_api_key: NOTARIUS_LLM_API_KEY
   # Optionally select a Notarius ConfigKit overlay when extraction runs. This
-  # is independent of Narratio's selected profile and may use a different name.
+  # is independent of Narratio's selected overlay and may use a different name.
   # See docs/config.md and docs/integrations/notarius.md for the contracts.
   # config_profile: downstream-economy
   config_path: /usr/local/etc/notarius/config.yml