gen-cards: regenerate Use-it block

README.md

@@ -23,6 +23,15 @@ no prompt, no noise — so it is fast and small enough to run fully on-device, i
 <!-- gen-cards:use-it begin id=adcsr-x4 (managed by scripts/gen-cards — edit cards.json / QuickStart.swift, not this block) -->
 ## 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 big = try await CoreAI.upscale(image)
+```
+
+Twenty ops, one shape — [Cookbook](https://github.com/john-rocky/coreai-kit/blob/main/docs/COOKBOOK.md).
+
 ▶️ **Run it (source)** — the [UpscaleDemo runner](https://github.com/john-rocky/coreai-kit/tree/main/Examples/UpscaleDemo)
 (pick a photo, upscale it ×4 on-device):