Prototype: Integrate CascadeEditor as NoteDelight’s rich-text editor

[linreal]

hi, @softartdev!

Summary

This issue proposes replacing NoteDelight’s plain TextField with CascadeEditor, giving notes structured blocks, rich-text spans, slash commands, lists, todos, quotes, code blocks, links, indentation, and document serialization

NoteDelightCeDemo.mp4

Why this fits NoteDelight

NoteDelight currently stores note content as a String. That string can remain the persistence container while its contents become a versioned Cascade document - core features of the app remain intact

Cascade documents can be distinguished from existing notes with a small versioned prefix:

notedelight:cascade:v1
{ ...Cascade document JSON... }

Existing unprefixed content remains legacy plain text
This means the initial migration is technically straightforward and does not require a database schema migration:

• If content has the Cascade prefix, decode it as a structured document
• Otherwise, import the existing text as paragraph blocks
• Preserve line boundaries by creating one paragraph per line
• On the next save, persist the document in Cascade’s serialized node format

Migration can therefore happen lazily when a note is opened and edited. An eager migration can be added later if there is a concrete need for one

Would you be open to reviewing a PR based on this prototype