Can I vibe code BundleB2B?

Build a custom B2B Account & Pricing Engine middleware for a headless store. 

1. DATA MODEL:
- Company: ID, Name, Parent Company ID, Status (Active/Pending), Credit Limit, Payment Terms (Net30/60).
- Company User: ID, Company ID, Email, Role (Admin, Buyer, Approver), Spend Limit Per Order, Daily Spend Limit.
- Price List: ID, Name, Priority. Mapping table of (PriceListID, SKU, CustomPrice, MinQuantity).
- Company Price List: Mapping table of (CompanyID, PriceListID).
- Quote: ID, CompanyID, UserID, Items (SKU, Qty, OfferedPrice), Status (Draft, Submitted, Approved, Rejected), Expiration Date.

2. CORE FUNCTIONALITY:
- Price Resolution API: Endpoint `/api/pricing/resolve` accepting `company_id` and array of `{sku, quantity}`. Evaluates company price lists by priority, falls back to catalog base price, returns resolved unit prices.
- Checkout Hook: Intercept store cart operations, inject resolved custom pricing via store script/cart transformation APIs, enforce spending limit checks based on the logged-in User's role.
- Approval Flow Engine: If cart total exceeds `User.SpendLimitPerOrder`, block checkout, create a Pending Order record, and dispatch email/webhook notification to company `Approver`.
- Quick Order & RFQ: Expose REST endpoints for bulk CSV SKU resolution and converting cart contents into a draft Quote object.

3. CORNER CASES TO HANDLE:
- Overlapping Price Lists: Implement explicit numeric priority sorting to select the lowest valid contract price.
- User Masquerading: Sales reps logging in as a company buyer must have all actions logged with `actor_id` in an audit table.
- Out-of-Stock Contract Items: Fallback rules when contract SKUs have partial inventory.

4. OUT OF SCOPE:
- Tax calculation engine (delegate to store core or Avalara).
- Payment gateway processing (use platform checkout).

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