gen-cards: regenerate Use-it block

README.md

@@ -32,6 +32,15 @@ waveform. Distilled (ARC) for few-step generation, so it's fast.
 
 ## Use it
 
+⚡ **One line** — this model is the default behind the kit's task op
+(`import CoreAIOps`; no session, no model plumbing, downloads on first use):
+
+```swift
+let audio = try await CoreAI.compose(prompt)
+```
+
+Twenty ops, one shape — [Cookbook](https://github.com/john-rocky/coreai-kit/blob/main/docs/COOKBOOK.md).
+
 ▶️ **Run it (source)** — the [Music runner](https://github.com/john-rocky/coreai-kit/tree/main/Examples/Music)
 (GUI + CLI, one app for every text-to-music model in the catalog):