[ISSUE-013] Recipe Schema & API

## Phase 3: Recipe Management (Weeks 4-5)

### Description
Implement Recipe model with all fields from LowLevelDesign
Create recipe CRUD endpoints (GET, POST, PUT /api/recipes)
Implement search and filtering API (GET /api/recipes?search=&cuisine=&category=)
Add pagination support
Create rating endpoint (PUT /api/recipes/:id/rating)

### Dependencies
- #005

### Can Work in Parallel With
- #014
- #015

Start by reviewing the LowLevelDesign and dependency #005 before locating the recipe model and API entry points. The work is complete when recipe CRUD, search and filtering, pagination, and rating endpoints are implemented with all specified recipe fields.

Written by the indexing model from the issue text.