Implement /status Health Check Endpoint and Refactor Plugin Registration

Description

Added a new root-status.controller.ts that provides two routes:

• GET / — returns a simple welcome message

• GET /status — returns server uptime, current timestamp, and status

• Registered this controller plugin in homeserver.module.ts.

• Also added a custom 404 error handler using app.onError for cleaner “not found” responses.

Key Code Snippets

root-status.controller.ts

import { Elysia } from 'elysia';

export const rootStatusPlugin = new Elysia()
  .get('/', () => ({
    message: 'Matrix server is live. Try /status.',
  }))
  .get('/status', () => ({
    status: 'ok',
    uptime: process.uptime(),
    timestamp: new Date().toISOString(),
  }));

homeserver.module.ts

app.onError(({ code }) => {
  if (code === 'NOT_FOUND') {
    return {
      error: 'Route not found. Are you lost?',
    };
  }
});

If this looks good, I’d be happy to create a PR for these changes. Please assign it to me if so, happy to contribute!

Start by reviewing root-status.controller.ts and homeserver.module.ts to understand the proposed plugin registration and error handling. Verify that GET / and GET /status return the described responses, and that an unknown route uses the custom not-found response; the issue does not mention a specific test file.