Local Process Start

When starting or previewing a runnable process on a development machine, run the platform start command from that process directory. For a multi-themed site, run it from xThemes/site, not from an individual theme directory. Use the platform-composed container and its normal routing. Do not substitute a standalone preview server, direct Vite invocation, or another ad hoc runner. If required backing services are unavailable, report the resulting blocker instead of presenting an alternate renderer as the runnable site.

Fix

Stop the alternate process and run start from the runnable process directory. Report any startup or backing-service failure with the process and command used.