feat: self-serve signup Phase 2 (frontend cutover) (#162)

Co-authored-by: Michael Chihlas <michael@resolutionflow.com>
Co-committed-by: Michael Chihlas <michael@resolutionflow.com>

frontend/src/components/layout/TopBar.tsx

@@ -6,6 +6,7 @@ import { usePermissions } from '@/hooks/usePermissions'
 import { BrandLogo } from '@/components/common/BrandLogo'
 import { CommandPalette } from './CommandPalette'
 import { NotificationsPanel } from './NotificationsPanel'
+import { TrialPill } from './TrialPill'
 import { cn } from '@/lib/utils'
 
 export function TopBar() {
@@ -110,6 +111,9 @@ export function TopBar() {
         {/* Spacer - push actions to right */}
         <div className="flex-1" />
 
+        {/* Billing-state pill (trial countdown / paid tier / past_due / etc.) */}
+        <TrialPill />
+
         {/* Action buttons */}
         <div className="flex items-center gap-1">
           <Link