feat: name current view in role-switcher pill, add Mentors sidebar entry

- Switcher trigger now shows the current view's icon + label with a
  chevron (e.g. "Admin View ⌄") instead of the vague "Switch View".
  Dropdown adds a header, marks the current view with a checkmark,
  and lists each accessible alternative explicitly.
- Adds a "Mentors" entry to the admin sidebar between Juries and
  Awards so the existing /admin/mentors page is reachable from nav.

src/components/layouts/admin-sidebar.tsx

@@ -30,6 +30,7 @@ import {
   LogOut,
   ChevronRight,
   BookOpen,
+  GraduationCap,
   Handshake,
   History,
   Trophy,
@@ -85,6 +86,11 @@ const navigation: NavItem[] = [
     href: '/admin/juries',
     icon: Scale,
   },
+  {
+    name: 'Mentors',
+    href: '/admin/mentors',
+    icon: GraduationCap,
+  },
   {
     name: 'Awards',
     href: '/admin/awards',

src/components/layouts/role-switcher.tsx

@@ -4,7 +4,8 @@ import { useMemo } from 'react'
 import Link from 'next/link'
 import { useSession } from 'next-auth/react'
 import {
-  ArrowRightLeft,
+  Check,
+  ChevronDown,
   Eye,
   Handshake,
   LayoutDashboard,
@@ -16,6 +17,8 @@ import {
   DropdownMenu,
   DropdownMenuContent,
   DropdownMenuItem,
+  DropdownMenuLabel,
+  DropdownMenuSeparator,
   DropdownMenuTrigger,
 } from '@/components/ui/dropdown-menu'
 import { Button } from '@/components/ui/button'
@@ -33,12 +36,8 @@ export const ROLE_SWITCH_OPTIONS: Record<string, RoleSwitchOption> = {
   AWARD_MASTER: { label: 'Award Master', path: '/award-master', icon: Trophy },
 }
 
-/**
- * Returns the list of dashboards the current user can switch to,
- * excluding the one matching `currentBasePath`. Deduplicates admin paths
- * (SUPER_ADMIN + PROGRAM_ADMIN both go to /admin).
- */
 export function useRoleSwitcher(currentBasePath: string): {
+  currentOption: RoleSwitchOption | null
   switchableRoles: Array<[string, RoleSwitchOption]>
   isImpersonating: boolean
 } {
@@ -46,32 +45,47 @@ export function useRoleSwitcher(currentBasePath: string): {
   const userRoles = (session?.user?.roles as UserRole[] | undefined) ?? []
   const isImpersonating = !!session?.user?.impersonating
 
-  const switchableRoles = useMemo(() => {
-    return Object.entries(ROLE_SWITCH_OPTIONS)
-      .filter(([role, opt]) => userRoles.includes(role as UserRole) && opt.path !== currentBasePath)
+  const { currentOption, switchableRoles } = useMemo(() => {
+    const accessible = Object.entries(ROLE_SWITCH_OPTIONS)
+      .filter(([role]) => userRoles.includes(role as UserRole))
       .filter((entry, i, arr) => arr.findIndex(([, o]) => o.path === entry[1].path) === i)
+    const current = accessible.find(([, opt]) => opt.path === currentBasePath)?.[1] ?? null
+    const others = accessible.filter(([, opt]) => opt.path !== currentBasePath)
+    return { currentOption: current, switchableRoles: others }
   }, [userRoles, currentBasePath])
 
-  return { switchableRoles, isImpersonating }
+  return { currentOption, switchableRoles, isImpersonating }
 }
 
 /**
- * Top-right "Switch View" pill. Hidden for single-role users and during
- * impersonation. Shows a popover listing alternate dashboards.
+ * Top-right view-switcher pill. Trigger names the current view; the dropdown
+ * lists alternative views. Hidden for single-view users and during impersonation.
  */
 export function RoleSwitcherPill({ currentBasePath }: { currentBasePath: string }) {
-  const { switchableRoles, isImpersonating } = useRoleSwitcher(currentBasePath)
-  if (switchableRoles.length === 0 || isImpersonating) return null
+  const { currentOption, switchableRoles, isImpersonating } = useRoleSwitcher(currentBasePath)
+  if (switchableRoles.length === 0 || isImpersonating || !currentOption) return null
+
+  const CurrentIcon = currentOption.icon
 
   return (
     <DropdownMenu>
       <DropdownMenuTrigger asChild>
-        <Button variant="outline" size="sm" className="gap-1.5">
-          <ArrowRightLeft className="h-3.5 w-3.5" />
-          <span className="hidden sm:inline">Switch View</span>
+        <Button variant="outline" size="sm" className="gap-1.5" aria-label="Switch view">
+          <CurrentIcon className="h-3.5 w-3.5" />
+          <span className="hidden sm:inline">{currentOption.label}</span>
+          <ChevronDown className="h-3.5 w-3.5 opacity-60" />
         </Button>
       </DropdownMenuTrigger>
-      <DropdownMenuContent align="end" className="min-w-44">
+      <DropdownMenuContent align="end" className="min-w-52">
+        <DropdownMenuLabel className="text-muted-foreground text-xs font-normal">
+          Switch to another view
+        </DropdownMenuLabel>
+        <DropdownMenuItem disabled className="opacity-100">
+          <CurrentIcon className="mr-2 h-4 w-4" />
+          <span className="flex-1">{currentOption.label}</span>
+          <Check className="text-muted-foreground h-3.5 w-3.5" />
+        </DropdownMenuItem>
+        <DropdownMenuSeparator />
         {switchableRoles.map(([role, opt]) => (
           <DropdownMenuItem key={role} asChild>
             <Link href={opt.path as Route} className="flex cursor-pointer items-center">