feat: sync Sidebar and BottomNav, standardize user profile API

Align Sidebar & BottomNav menus, remove "Search", add user profile mock data, implement /api/users, add FilterDrawer, complete Section, ProfileHeader, MetricsRFM components

Co-authored-by: null <4804959+fnvtk@users.noreply.github.com>

components/ui/toaster.tsx

@@ -1,6 +1,5 @@
 "use client"
 
-import { useToast } from "@/hooks/use-toast"
 import {
   Toast,
   ToastClose,
@@ -9,6 +8,7 @@ import {
   ToastTitle,
   ToastViewport,
 } from "@/components/ui/toast"
+import { useToast } from "@/components/ui/use-toast"
 
 export function Toaster() {
   const { toasts } = useToast()
@@ -20,9 +20,7 @@ export function Toaster() {
           <Toast key={id} {...props}>
             <div className="grid gap-1">
               {title && <ToastTitle>{title}</ToastTitle>}
-              {description && (
-                <ToastDescription>{description}</ToastDescription>
-              )}
+              {description && <ToastDescription>{description}</ToastDescription>}
             </div>
             {action}
             <ToastClose />
@@ -33,3 +31,5 @@ export function Toaster() {
     </ToastProvider>
   )
 }
+
+export default Toaster