F14.3 — Finish guidance, resume, and entry points

[Flow-Fly]

Parent: #128. Depends on #130.

Product contract

The artist decides when the work is done. Coverage may be shown as useful information, but reaching 100% does not automatically finish, reveal, fill, or convert anything.

Recipe

1. Finish guidance

   • Keep an always-available Finish guidance action.
   • Confirm that finishing removes the numbered scaffold and guide restrictions while keeping the artwork and undo history.
   • Remove the guided-session payload only after explicit confirmation.

2. Preview without surrendering control

   • Let the artist temporarily hide/show numbers or view the generated target.
   • Do not auto-fill unfinished cells in the MVP.
   • Do not use Give up language.

3. Resume

   • Reopening a project with a guided-session payload restores guidance, settings, and progress.
   • Closing or switching projects does not imply completion.

4. Result view

   • Finishing guidance returns to the normal editor and zooms to a useful view without forced choreography.
   • View with CRT is optional and never enabled automatically.
   • Respect reduced-motion preferences.

5. Entry points

   • Add Paint by number beside normal creation in the project browser.
   • Add a secondary File menu entry.
   • Always create a separate workspace project and handle the workspace item limit explicitly.

Acceptance

• Guidance can be finished at any coverage percentage.
• Finishing changes no painted pixels and preserves undoable work.
• Mid-session save/reload resumes exactly.
• The target may be previewed without auto-painting it.
• CRT remains an explicit optional view.
• Entry points clearly communicate that a new project will be created.