create new request

### Feature 4: Create new Request

#### User story
User can create Request

#### Pre-requisites:
- Implements Request DAO(create)
- Implement Request Service(create)
- Request table

### Validation
- [ ] Form validation
- Name: Required, cannot be empty.
- Description: Required,more than 100 letters, cannot be empty.
- Category ID: Required, must be a positive integer.
- Amount: Required, must be a positive integer.

- [ ] Business validation
- Id already Exists
- Email already Exists
- Phone number already Exists

#### Messages

- Name cannot be empty.
- Description cannot be empty.
- Description must be more than 100 letters, cannot be empty.
- Category ID must be a positive integer.
- Amount must be a positive integer.

#### Flow:
```mermaid
graph TD;

A["User Service: Create Request"] --> B["Form Validation"]
B --> |Valid| C0["Business Validation"]
C0 --> |Valid| C["Check Unique Email"]
B --> |Invalid| C1["Validation Exception: Invalid Input"]
C --> |Yes| D["User DAO: Create Request"]
D --> |Success| E["Response: Request Created"]
C --> |No| F["User Service: Email Already Exists (Error Response)"]

```