fix: resolve build errors and add dialog component

- Add Dialog UI component (shadcn/radix-ui)
- Fix html2pdf.js type annotations with const assertions
- Add @radix-ui/react-dialog dependency

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/web/components/layouts/dashboard-shell.tsx

@@ -1,4 +1,3 @@
-import { Sidebar } from './sidebar';
 import { Header } from './header';
 
 interface DashboardShellProps {
@@ -8,13 +7,12 @@ interface DashboardShellProps {
 }
 
 export function DashboardShell({ children, title, headerContent }: DashboardShellProps) {
+  // Navigation is handled by the parent layout.tsx which respects theme settings
+  // DashboardShell only provides Header and content wrapper
   return (
-    <div className="min-h-screen bg-background">
-      <Sidebar />
-      <div className="pl-64">
-        <Header title={title}>{headerContent}</Header>
-        <main className="p-6">{children}</main>
-      </div>
-    </div>
+    <>
+      <Header title={title}>{headerContent}</Header>
+      <main className="p-6">{children}</main>
+    </>
   );
 }