[Blocker] fix(store-context): heal stale fallback storeId from server list on startup

# Operasional Mulus Sejak Startup: Menyelamatkan POS dari "Salah Toko" Aku baru saja --- ### Raw Commit Data ## GitHub Update **Repository:** [MKWcorp/POS-DRW-Skincare](https://github.com/MKWcorp/POS-DRW-Skincare) **Author:** multimediadrw **Date:** 5/5/2026, 10:27:29 PM **Commit:** [`d20f46f`](https://github.com/MKWcorp/POS-DRW-Skincare/commit/d20f46f7f9cce49d13a429e4fc4e4b3496c13639) ### Commit Message fix(store-context): heal stale fallback storeId from server list on startup --- _This story was imported from historical commits._