Unify entities navigation, redesign time clock, and add invoice PDF preview.

Combine clients and businesses under entities, polish the web time clock,
and show live invoice PDF preview with tighter line-item editing.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/lib/navigation.ts

@@ -3,7 +3,6 @@ import {
   LayoutDashboard,
   Users,
   FileText,
-  Building,
   Receipt,
   BarChart2,
   Shield,
@@ -22,14 +21,24 @@ export interface NavSection {
   links: NavLink[];
 }
 
+export function isNavLinkActive(pathname: string, href: string): boolean {
+  if (href === "/dashboard/entities") {
+    return (
+      pathname === href ||
+      pathname.startsWith("/dashboard/clients") ||
+      pathname.startsWith("/dashboard/businesses")
+    );
+  }
+  return pathname === href;
+}
+
 export const navigationConfig: NavSection[] = [
   {
     title: "Main",
     links: [
       { name: "Dashboard", href: "/dashboard", icon: LayoutDashboard },
       { name: "Time clock", href: "/dashboard/time-clock", icon: Clock },
-      { name: "Clients", href: "/dashboard/clients", icon: Users },
-      { name: "Businesses", href: "/dashboard/businesses", icon: Building },
+      { name: "Entities", href: "/dashboard/entities", icon: Users },
       { name: "Invoices", href: "/dashboard/invoices", icon: FileText },
       { name: "Recurring", href: "/dashboard/invoices/recurring", icon: RefreshCw },
       { name: "Expenses", href: "/dashboard/expenses", icon: Receipt },