[Build] refactor: continue phase-0 modularization and update progress checklist

# Merakit Jantung Baru: Pondasi Kokoh untuk Aplikasi POS DRW Skincare Aku baru saja meramp --- ### Raw Commit Data ## GitHub Update **Repository:** [MKWcorp/POS-DRW-Skincare](https://github.com/MKWcorp/POS-DRW-Skincare) **Author:** MKWcorp **Date:** 4/27/2026, 5:58:29 AM **Commit:** [`4600634`](https://github.com/MKWcorp/POS-DRW-Skincare/commit/46006342c3a3b55deeacc10a670bb43ad07d4b95) ### Commit Message refactor: continue phase-0 modularization and update progress checklist --- _This story was imported from historical commits._