Categories API

GET /categories
Authorization: Bearer <token>

[
  {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "name": "Food & Dining",
    "type": "expense",
    "color": 4294942720,
    "icon": "restaurant",
    "created_at": "2024-01-15T10:30:00Z",
    "updated_at": "2024-01-15T10:30:00Z"
  }
]

POST /categories
Authorization: Bearer <token>
Content-Type: application/json

{
  "name": "Salary",
  "type": "income",
  "color": 4283215696,
  "icon": "attach_money"
}

{
  "id": "550e8400-e29b-41d4-a716-446655440001",
  "name": "Salary",
  "type": "income",
  "color": 4283215696,
  "icon": "attach_money",
  "created_at": "2024-01-15T12:00:00Z",
  "updated_at": "2024-01-15T12:00:00Z"
}