Docs & Presets (user guide + sample templates)

[sharwell]

Summary

Document how to enable/configure face frames and provide preset layouts.

Current Behavior

No user guidance or presets for face frames.

Expected Behavior

README/user docs updated with steps, defaults, and example cabinets; presets available in UI.

Steps to Reproduce

1. Open docs; follow steps to create a face frame cabinet.
2. Choose a preset (Double Doors, 3‑Drawer Stack) and confirm expected results.

Technical Description

• Add a “Face Frame” section to docs calling out units and invariants.
• Bundle two preset JSON snippets.

Best Practice Reference

• Calls out invariants per project docs and AGENTS.md.

Implementation Notes

• Include screenshots of dialog and Outliner hierarchy.

Proposed solutions

Option A

Inline docs in README.

Option B

Separate docs/face-frame.md referenced from README.

Acceptance Criteria

• Docs explain inputs, outputs, and limitations (MVP scope).
• Presets appear in UI and match solver expectations.
• Screenshots current and minimal.