Dashboard Chat tab fails with EACCES in Docker image — /opt/hermes/ui-tui is root-owned but dashboard runs as hermes

#20500 Fixed P2 comp/tui

Dashboard Chat tab fails with EACCES in Docker image — /opt/hermes/ui-tui is root-owned but dashboard runs as hermes

In the official Hermes Docker image, the dashboard's Chat tab fails on first connection because it runs as the unprivileged hermes user while /opt/hermes/ui-tui/ is root-owned, causing esbuild to fail writing the TUI bundle with EACCES.