Runs the MTA (as mix dev.mta) and the web UI's Vite dev server (bun dev in lib/core/sovite_web) together, for development.
mix dev
mix dev --config path/to/sovite.tomlThe dev server reloads the UI as its files change, and forwards /api
to the MTA's admin API. Its output is shown with the MTA's. Stop both
with Ctrl+C. bun install runs first if the UI's packages are missing.