Get loan application by ID

{  "id": "650e8400-e29b-41d4-a716-446655440000",  "resource_id": "lapp_351t201rmv87aae5j4csam8000",  "status": "APPROVED",  "account_id": "550e8400-e29b-41d4-a716-446655440000",  "loan_product_type": "FLAT_RATE",  "loan_amount": 500000,  "collateral_amount": 100000,  "collateral_percentage_basis_points": 1500,  "collateral_hold_id": "750e8400-e29b-41d4-a716-446655440000",  "total_repayment_amount": 550000,  "tenure_weeks": 12,  "tenure": {    "duration": 12,    "unit": "WEEKS"  },  "weekly_interest_rate_basis_points": 1000,  "currency": "KES",  "expires_at": "2025-10-27T10:30:00Z"}

{  "code": "BAD_REQUEST",  "description": "Bad Request"}

{  "code": "UNAUTHORISED",  "description": "Unauthorised"}

{  "code": "WAITING_LIST",  "description": "User is in the waiting list"}

{  "code": "TOO_MANY_REQUESTS",  "description": "Too Many Requests"}

{  "code": "INTERNAL_SERVER_ERROR",  "description": "Internal Server Error"}