v17.0.0.rc.5

Fixed

• [Pro] RSC and client-only FOUC reveal gating: Pro now waits for auto-loaded generated component stylesheets before mounting client-only roots and promotes streamed RSC client chunk stylesheet preloads to real stylesheet links before reveal, including when stream chunks split <link> tags. Shared generated CSS is matched through manifest-derived stylesheet href metadata, while app-authored preload links remain untouched. Fixes Issue 4031, Issue 4032. PR 4047 by justin808.