Summon 0.7.0.2

Fixed

• Composable rendered twice in fullstack SSR projects - The server-rendered HTML and the
  client-side app both appeared on screen because the generated client Main.kt used
  renderComposableRoot instead of hydrateComposableRoot, causing the JS app to append below
  the static SSR content rather than replacing it
• renderComposable safety net - Calling renderComposableRoot on an SSR container now
  always clears existing content before rendering, preventing duplicate output even if
  hydrateComposableRoot is not used