ryostore: ricelin 1.2.0

[feelyourwarmth]

What is this?

1.2.0 version of ricelin bar for ryostore

Checklist

• One folder under its catalogue with a manifest and a real preview image (not a placeholder).
• One entry added to that catalogue's registry.json (lastUpdated in YYYY-MM-DD; official: false for community items).
• Tested live in Ryoku, it renders and behaves correctly (see DEVELOP.md).
• tests/validate-catalogue.sh passes from the repo root.
• I own or have permission to submit this content, and it is licensed for redistribution.
• It does not overwrite user configuration or run privileged commands without clear consent.