fix(finance): guard max() when byDay array is empty

max(...[]) throws ArgumentCountError. Split the intermediate array
and only call max() when it has elements. Fixes /app/finance 500
on tenants with no payments in the current period.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/Filament/Tenant/Pages/Finance.php

@@ -123,7 +123,8 @@ class Finance extends Page
         // Totals + max (for bar chart scale).
         $totalIn = array_sum(array_column($byDay, 'in'));
         $totalOut = array_sum(array_column($byDay, 'out'));
-        $maxAbs = max(0.001, max(...array_map(fn ($d) => max($d['in'], $d['out']), $byDay)));
+        $dayMaxes = array_map(fn ($d) => max($d['in'], $d['out']), $byDay);
+        $maxAbs = max(0.001, $dayMaxes ? max($dayMaxes) : 0);
 
         return [
             'rows' => array_values($byDay),