Add --watch flag to test command for continuous monitoring

[KryptosAI]

Summary

Add a --watch mode to the test command that re-runs scans when the target server's tool list or configuration changes.

Files to modify

• src/commands/test.ts

What to change

1. Add a --watch boolean flag to the test command definition.
2. When --watch is set, after the initial scan completes, use chokidar or fs.watch to monitor the target's config file or stdin input for changes.
3. On change, re-run the scan and display updated results.
4. Pressing Ctrl+C should exit cleanly.
5. Display "Watching for changes..." after the initial scan.

Expected behavior

mcp-observatory test --watch npx -y @modelcontextprotocol/server-memory

Keeps the scan alive and re-runs whenever the server config changes.

Estimated time

~20 minutes

[albatrossflyon-coder]

Hi! I'd like to work on this one.