style: align all pages with CLAUDE.md design system

- Inputs: uniform padding (8px 12px), borderRadius 7, bg-inset background
- List rows/cards: bg-subtle background, border-subtle border (bg-inset was input-only)
- Invite/admin badge borders: use accent-border var instead of raw accent
- Section headers: 11px, weight 500, uppercase, 0.7px letter-spacing
- Notification/status banners: borderRadius 8
- Remove debug console.log statements from SettingsPage avatar upload flow

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

web/src/pages/HomePage.tsx

@@ -35,7 +35,7 @@ export function HomePage() {
     padding: "8px 12px",
     background: "var(--bg-inset)",
     border: "1px solid var(--border)",
-    borderRadius: 6,
+    borderRadius: 7,
     color: "var(--text)",
     marginBottom: 12,
     fontSize: 14,