[C4GT] Implement Beckn ODR Sandbox Interface - use cases

## Description
As part of this project, we require the developer to develop comprehensive use cases for ODR. These use cases will serve as essential building blocks for the development of the system, outlining its functionalities, user interactions, and expected outcomes. The use cases will play a crucial role in ensuring the project meets its objectives of empowering users to use the app by taking care of all possible outcomes.

## Goals
- List down all the different workflow possibilities for ODR.
- For each possibility, come up with a use case and the parameters it depends on.

## Expected Outcome
Create a use case document, with all the different different options that are available in the domain, along with the different scenarios in each use case.

## Acceptance Criteria
- Create a use case document, with all the different different options that are available in the domain
- Note down the different scenarios in each use case.

## Implementation Details
NA for this issue

## Mockups / Wireframes
NA for this issue

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[Please note that the below section of the ticket ****has to be in the format as mentioned as it is key to enabling proper listing of the project.**** Please only choose the options mentioned under the headings wherever applicable.]

### Product Name
Beckn

### Project Name
Beckn ODR Sandbox

### Organization Name:
Beckn

### Domain
energy

### Tech Skills Needed:
[Required technical skills for the project]

### Mentor(s)
@shenoyninad

### Complexity
Medium

### Category
Documentation

### Sub Category
API

Start by reviewing the issue's requirements for ODR workflow possibilities, use-case parameters, and scenario outcomes. Produce a comprehensive use-case document covering the available options and scenarios; no source files or tests are identified in the issue.

Written by the indexing model from the issue text.