Fix mobile overflow, logo nav, round activation, compare projects setting

- Fix assignments page header overflow on mobile (flex-wrap)
- Hide 'Back to Dashboard' button on mobile (logo tap navigates home)
- Make logo/brand text clickable to navigate to role dashboard
- Snap windowOpenAt to now when manually activating a round early
- Gate Compare Projects cards behind jury_compare_enabled setting (defaults off)
- Expose jury_compare_enabled in getFeatureFlags tRPC procedure

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

src/server/routers/settings.ts

@@ -26,7 +26,7 @@ export const settingsRouter = router({
    * These are non-sensitive settings that can be exposed to any user
    */
   getFeatureFlags: protectedProcedure.query(async ({ ctx }) => {
-    const [whatsappEnabled, defaultLocale, availableLocales] = await Promise.all([
+    const [whatsappEnabled, defaultLocale, availableLocales, juryCompareEnabled] = await Promise.all([
       ctx.prisma.systemSettings.findUnique({
         where: { key: 'whatsapp_enabled' },
       }),
@@ -36,12 +36,16 @@ export const settingsRouter = router({
       ctx.prisma.systemSettings.findUnique({
         where: { key: 'i18n_available_locales' },
       }),
+      ctx.prisma.systemSettings.findUnique({
+        where: { key: 'jury_compare_enabled' },
+      }),
     ])
 
     return {
       whatsappEnabled: whatsappEnabled?.value === 'true',
       defaultLocale: defaultLocale?.value || 'en',
       availableLocales: availableLocales?.value ? JSON.parse(availableLocales.value) : ['en', 'fr'],
+      juryCompareEnabled: juryCompareEnabled?.value === 'true',
     }
   }),