feat: add warehouse and bin management API with mock data implementation

- Implemented warehouses API with methods for listing, creating, and managing bins.
- Added wastage API to handle stock write-offs and integrate with stock adjustments.
- Created auth token management for storing and retrieving access tokens.
- Developed error mapping for consistent user-facing error messages.
- Introduced client-side validations for GRN, master data, and procurement processes.
- Defined common types for pagination, problem details, and various master data entities.
- Established procurement and stock management types to support frontend functionality.

Frontend/erp-system/package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "scripts": {
-    "dev": "next dev",
+    "dev": "next dev --webpack",
     "build": "next build",
     "start": "next start",
     "lint": "eslint"