Add top-level members list, primary member on account, member move, combined create flows

- GET /v1/members with search across all members (includes account name)
- POST /members/:id/move with optional accountId (creates new account if omitted)
- primary_member_id on account table, auto-set when first member added
- isMinor flag on member create (manual override when no DOB provided)
- Account search now includes member names
- New account form includes primary contact fields, auto-generates name
- Members page in sidebar with global search

packages/admin/src/routes/_authenticated.tsx

@@ -14,7 +14,7 @@ import {
   DropdownMenuSubTrigger,
   DropdownMenuSubContent,
 } from '@/components/ui/dropdown-menu'
-import { Users, Sun, Moon, Monitor, LogOut, User, Palette } from 'lucide-react'
+import { Users, UserRound, Sun, Moon, Monitor, LogOut, User, Palette } from 'lucide-react'
 
 export const Route = createFileRoute('/_authenticated')({
   beforeLoad: () => {
@@ -61,6 +61,14 @@ function AuthenticatedLayout() {
               <Users className="h-4 w-4" />
               Accounts
             </Link>
+            <Link
+              to="/members"
+              className="flex items-center gap-2 px-3 py-2 rounded-md text-sm text-sidebar-foreground hover:bg-sidebar-accent"
+              activeProps={{ className: 'flex items-center gap-2 px-3 py-2 rounded-md text-sm bg-sidebar-accent text-sidebar-accent-foreground' }}
+            >
+              <UserRound className="h-4 w-4" />
+              Members
+            </Link>
           </div>
 
           <div className="p-3 border-t border-sidebar-border">