[Blocker] feat: Backend V2 Multi-Store Isolation + Store Name Sync Fix

# Membangun Benteng Data: POS Multi-Toko yang Kokoh dan Rapi Aku --- ### Raw Commit Data ## GitHub Update **Repository:** [MKWcorp/POS-DRW-Skincare](https://github.com/MKWcorp/POS-DRW-Skincare) **Author:** MKWcorp **Date:** 5/11/2026, 6:35:49 AM **Commit:** [`30e894d`](https://github.com/MKWcorp/POS-DRW-Skincare/commit/30e894d1cf4fdf6dd67f995d16e2b7903d47a98d) ### Commit Message feat: Backend V2 Multi-Store Isolation + Store Name Sync Fix Major Updates (May 11, 2026): 🔒 Backend V2 Multi-Store Isolation: - Enforce store_id REQUIRED in all sync endpoints (push/pull/snapshot) - Updated sync_api.dart: storeId parameter now non-nullable - Updated activity_log_pull_orchestrator: Enforce storeId requirement - _resolveCurrentSyncScope() throws STORE_CONTEXT_REQUIRED if missing - Graceful error handling: sync paused when store not selected - Build verified: 0 compile errors, ready for production 🏪 Store Name Sync Fix: - Backend: New endpoint PATCH /api/pos/mobile/stores/:storeId - Mobile: Added updateStoreName() to MobileStoreManagementRepository - Store Settings: Now updates BOTH reseller profile AND stores table - Multiple Store: Auto-refresh via provider invalidation - Backend validates: admin/owner role, activity log STORE_NAME_UPDATED 📊 Activity Log Multi-Store (Phase 1-3): - Phase 1: Fixed userRole capture (StoreRole vs customer tier) - Phase 2: Added Store + Role filters to Activity Log Viewer UI - Phase 3: Backend V2 integration complete - Documentation: ACTIVITY_LOG_MULTI_STORE_ANALYSIS.md marked READY 🐛 Bug Fixes: - Store isolation: Snapshot scope key cleared on logout - Store switch: ALWAYS clear data (prevent contamination) - Multiple Store: Enhanced auto-refresh on navigation return 📝 Documentation: - Created BACKEND_PROMPT_STORE_NAME_UPDATE.md - Created STORE_NAME_SYNC_FIX_PLAN.md - Updated ACTIVITY_LOG_MULTI_STORE_ANALYSIS.md - Updated AGENTS.md with comprehensive changes Files Changed: 86 modified, 7 new files Build Status: ✅ 0 errors, production-ready --- _This story was imported from historical commits._