Fix account/member form validation, add member number to tables

- Fix account create form blocking on empty name when includeFirstMember
- Add noValidate to forms to prevent browser native validation on optional fields
- Show member number column on account members tab
- Replace DOB with phone in members table for better at-a-glance info

packages/admin/src/routes/_authenticated/accounts/$accountId/members.tsx

@@ -93,9 +93,10 @@ function MembersTab() {
           <Table>
             <TableHeader>
               <TableRow>
+                <TableHead>#</TableHead>
                 <TableHead>Name</TableHead>
                 <TableHead>Email</TableHead>
-                <TableHead>Date of Birth</TableHead>
+                <TableHead>Phone</TableHead>
                 <TableHead>Status</TableHead>
                 <TableHead className="w-24">Actions</TableHead>
               </TableRow>
@@ -103,9 +104,10 @@ function MembersTab() {
             <TableBody>
               {members.map((m) => (
                 <TableRow key={m.id}>
+                  <TableCell className="font-mono text-sm text-muted-foreground">{m.memberNumber ?? '-'}</TableCell>
                   <TableCell className="font-medium">{m.firstName} {m.lastName}</TableCell>
                   <TableCell>{m.email ?? '-'}</TableCell>
-                  <TableCell>{m.dateOfBirth ?? '-'}</TableCell>
+                  <TableCell>{m.phone ?? '-'}</TableCell>
                   <TableCell>
                     {m.isMinor ? <Badge variant="secondary">Minor</Badge> : <Badge>Adult</Badge>}
                   </TableCell>