feat: Multi-role platform expansion, mobile nav redesign, and UI polish

- Add Owner, Contractor, Vendor, Subcontractor dashboards and role-based routing
- Owner now has superuser access to all Admin pages (dashboard, schedule, leaderboard)
- Redesign landing page mobile menu as slide-in sidebar (replaces broken Framer Motion overlay)
- Add body scroll lock to app sidebar for mobile consistency
- Fix Team Schedule to match Admin Dashboard design language (ambient glows, gradient header, SpotlightCard, zinc palette)
- Fix login page tab overflow — use abbreviated labels and grid layout for 6 role tabs
- Fix Recharts ResponsiveContainer warnings — replace height="100%" with fixed pixel heights
- Fix lightbox image viewer — unified nav bar, touch swipe support, no more overlapping text
- Add AI Assistant page, People/Vendor/Document management for Owner role
- Expand mock data store with contractor, vendor, and subcontractor data

src/components/dashboard/GoldenLeadsScatter.jsx

@@ -46,8 +46,8 @@ export const GoldenLeadsScatter = ({ properties }) => {
                     </div>
                 </div>
 
-                <div className="flex-1 w-full min-h-[200px]">
-                    <ResponsiveContainer width="100%" height="100%">
+                <div className="w-full">
+                    <ResponsiveContainer width="100%" height={200}>
                         <ScatterChart
                             margin={{ top: 20, right: 20, bottom: 20, left: 0 }}
                         >