🤖 Add Auto Reply Bot for New Issues

### Description
We need to implement an automated response system that welcomes contributors when they create new issues in our repository.

### Goal
Set up a GitHub Actions workflow that automatically comments on newly opened issues with a welcome message and directs users to our Discord server for further discussions.

### Requirements
- Create a GitHub Actions workflow file
- Trigger on new issue creation
- Post an automated welcome comment
- Include Discord server link in the message

### Proposed Message
```
Thank you for raising this issue! Our team will review it soon.

For more queries or discussions or approval of requests, please join the Discord server for further discussion: [Discord Link](https://discord.com/invite/Yn9g6KuWyA)
```

### Implementation Details
- **File Location**: `.github/workflows/issue-auto-reply.yml`
- **Trigger**: When a new issue is opened
- **Action**: Post automated comment using `actions/github-script`

### Acceptance Criteria
- [ ] Workflow file is created in correct location
- [ ] Workflow triggers only on new issues (not PRs)
- [ ] Comment is posted automatically within seconds of issue creation
- [ ] Message includes Discord server link
- [ ] Proper permissions are set for the workflow

### Additional Context
This will help improve our community engagement and ensure contributors know where to get help quickly.

Review the requirements for .github/workflows/issue-auto-reply.yml and the actions/github-script entry point first. Verify the workflow's new-issue trigger, welcome message with the supplied Discord link, PR exclusion, timing, and permissions against the acceptance criteria.

Written by the indexing model from the issue text.