Sink firms with no login to the bottom, and name the account type plainly

A firm with no stored Tradovate login can do nothing until someone enters
one, so it no longer interleaves by name with the firms that are actually
running. Sorted at render rather than in /api/firms, which keeps serving the
catalog in the master's own order. Name order is preserved within each group.

The account-type picker showed "Auto — Flex 50k Funded", which put the
mechanism before the answer in the one place the answer is what you are
reading. It shows the type's name now, or Unassigned when nothing matched.
That first entry still clears a manual pin; the dot beside the select is what
says a pin is in effect.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

app/accounts/[id]/page.tsx

@@ -53,7 +53,7 @@ function AccountTypePicker({ account, firm, onAssigned }: {
                 className="border border-slate-200 rounded-md px-1.5 py-1 text-xs bg-white text-slate-700 focus:outline-none focus:ring-1 focus:ring-blue-400"
             >
                 <option value="">
-                    {account.accountTypeLabel ? `Auto — ${account.accountTypeLabel}` : 'Auto — unassigned'}
+                    {account.accountTypeLabel ?? 'Unassigned'}
                 </option>
                 {firm.accounts.map((type) => (
                     <option key={type.id} value={type.id}>