Calling setActiveView/setConnectionFilter inside useEffect body triggered
the react-hooks/set-state-in-effect lint error. Initialise both states
directly from URL params via lazy useState initialisers so no effect is
needed, and remove the now-unused useEffect import.
Also scope Docker build to version tags only (release-please triggers),
and restrict Python Tests to push/PR against main.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>