[codex] migrate deprecated inventory endpoints

[dt2patel]

Business summary

This removes Inventory Count's remaining dependency on deprecated inventory-cycle-count endpoints so the app keeps working after the backend cleanup in hotwax/hotwax-poorti#247.

Closes #1397.

What changed

• migrated non-admin facility lookup from inventory-cycle-count/user/${partyId}/facilities to admin/user/${partyId}/facilities
• migrated force-scan and barcode settings read/write from inventory-cycle-count/productStores/${productStoreId}/settings to admin/productStores/${productStoreId}/settings
• removed stale unused helpers that still referenced deprecated facility/product-store routes

Why

The backend PR removes deprecated resources for user, productStores, facilities, enums, and login from service/inventorycount.rest.xml. Inventory Count had already moved some surfaces to admin/... and oms/..., but login facility resolution and store settings were still on the deprecated contract.

Validation

• verified no remaining deprecated inventory-cycle-count/user, inventory-cycle-count/users, inventory-cycle-count/facilities, or inventory-cycle-count/productStores references remain under src/
• npm run lint passes with pre-existing warnings in src/views/Tabs.vue
• npm run build still fails for unrelated existing Shopify App Bridge module resolution and TS typing errors in src/services/utils.ts

[gemini-code-assist]

Code Review

This pull request migrates several API endpoints from the inventory-cycle-count prefix to the admin prefix and removes the unused loadStoresByFacility and loadUserFacilities actions. The review feedback recommends using encodeURIComponent for dynamic URL parameters to ensure robustness and notes a potential mismatch between partyId and userLoginId for the updated user facilities endpoint.