Documentation: Add sandbox instructions for live use

[surister]

About

Add instructions on how to run the project locally in development mode in real applications like Claude.

[amotl]

Thanks. I haven't used it together with Claude yet, but @hammerhead did.

So, the example snippet at https://github.com/crate/cratedb-mcp?claude-cline-cursor-roo-code-windsurf is not sufficient, or lacks accompanying instructions? Please help resolve my literal operational blindness. ;]

[surister]

Sorry, I didn't explain myself correctly, I meant running the project in dev mode locally, for when debugging.