fix(studio): correct projectRef gate and isMatureProject UTC parse

useOnboardingSurveyPrompt: shouldShowPrompt required !!projectRef for all
surfaces, which would always be false during org creation (no project
selected). Gate is now only applied to project_home, where it's meaningful.

Home.tsx: isMatureProject was parsing inserted_at in local time while
isRecentlyCreatedProject (directly below) explicitly uses dayjs.utc().
Both now use UTC for consistency.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/studio/components/interfaces/OnboardingSurvey/useOnboardingSurveyPrompt.ts

@@ -83,7 +83,7 @@ export function useOnboardingSurveyPrompt({ surface }: { surface: OnboardingSurv
   const shouldShowPrompt =
     isPromptStateLoaded &&
     !!orgSlug &&
-    !!projectRef &&
+    (surface !== 'project_home' || !!projectRef) &&
     !!profileId &&
     promptState === null &&
     variantMatchesSurface(variant, surface)

apps/studio/components/interfaces/ProjectHome/Home.tsx

@@ -31,7 +31,7 @@ export const ProjectHome = () => {
 
   const showHomepageUsageV2 = useFlag('newHomepageUsageV2')
 
-  const isMatureProject = dayjs(project?.inserted_at).isBefore(dayjs().subtract(10, 'day'))
+  const isMatureProject = dayjs.utc(project?.inserted_at).isBefore(dayjs.utc().subtract(10, 'day'))
 
   const hasShownEnableBranchingModalRef = useRef(false)
   const isPaused = project?.status === PROJECT_STATUS.INACTIVE