Refactor Checklist

Status legend:

• done
• partial
• pending

Core slices

Area	Status	Notes
RFC + architecture docs	done	Feature-first responsibility model documented
Customization editor feature split	done	Editor modules extracted from page layer
Live preview split	done	Feature preview modules in place
Upload/final workflow hooks	done	Page orchestration removed
Printer workflow split	done	Provider and tab wiring reduced
Voucher workflow split	done	Hook + preview components extracted
Collage workflow split	done	Provider now wraps a controller
Persistence split	done	Explicit adapters in infra/persistence
Settings defaults/persistence split	done	Store reduced to Zustand orchestration
Sharing controller split	done	Parsing/signing extracted
Xendit client split	done	HTTP, mapping, mock, and types extracted
Customization page shell split	done	Header and tabs extracted

Remaining cleanup

Area	Status	Notes
Canvas renderer split	done	Layout, text, and overlay orchestration extracted
Server container split	done	Env parsing, clients, and services separated
Visual editor coordinator split	done	Selection and actions extracted from main hook
Customization tabs config extraction	done	Tab registry moved out of component
Voucher second-pass decomposition	done	QR storage and action helpers extracted
Collage second-pass decomposition	done	Collage generation and dithering extracted