Supplier Resource Module

[Xaxxoo]

Description
Implement Supplier resource for managing vendor information, contacts, and supplier relationships.
Acceptance Criteria

Create Supplier entity with contact information
Implement SupplierService with CRUD operations
Create SupplierController with REST endpoints
Add supplier contact management
Implement supplier rating/performance tracking
Add supplier-item associations
Create supplier communication logs
Add supplier status management

API Endpoints
GET /suppliers
GET /suppliers/:id
POST /suppliers
PUT /suppliers/:id
DELETE /suppliers/:id
GET /suppliers/:id/items
POST /suppliers/:id/contacts

[Calebux]

I'll jump on this as soon as i am ASSIGNED