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/context/AuthContext.jsx

@@ -5,6 +5,16 @@ import { toast } from 'sonner';
 
 const AuthContext = createContext();
 
+export const ROLES = {
+    OWNER: 'OWNER',
+    ADMIN: 'ADMIN',
+    CONTRACTOR: 'CONTRACTOR',
+    SUBCONTRACTOR: 'SUBCONTRACTOR',
+    VENDOR: 'VENDOR',
+    FIELD_AGENT: 'FIELD_AGENT',
+    CUSTOMER: 'CUSTOMER'
+};
+
 export const AuthProvider = ({ children }) => {
     const [user, setUser] = useState(null);
     const [isAuthenticated, setIsAuthenticated] = useState(false);
@@ -16,11 +26,15 @@ export const AuthProvider = ({ children }) => {
                 if (u.type !== type) return false;
                 if (type === 'customer') return u.username === identifier && u.password === password;
                 if (type === 'employee') return u.empId === identifier && u.password === password;
+                // Support new role types
+                if (['owner', 'contractor', 'subcontractor', 'vendor'].includes(type) || u.type === type) {
+                    return (u.email === identifier || u.username === identifier) && u.password === password;
+                }
                 return false;
             });
 
             if (foundUser) {
-                // Ensure specific role exists
+                // Ensure specific role exists and matches requested type if applicable
                 const userWithRole = {
                     ...foundUser,
                     role: foundUser.role || 'CUSTOMER'