feat(dashboard): 完善全角色身份会员数量、马豆存量、分佣及市值统计矩阵

addons/shopro/service/partner/RateService.php

@@ -14,11 +14,11 @@ class RateService
     public function currentRate()
     {
         $latest = RateLog::order('id', 'desc')->find();
-        if ($latest) {
+        if ($latest && (float) $latest->rate > 0) {
             return (float) $latest->rate;
         }
         $cached = cache('partner_madow_current_rate');
-        if ($cached !== null && $cached !== false) {
+        if ($cached !== null && $cached !== false && (float) $cached > 0) {
             return (float) $cached;
         }
         $rate = $this->calcRate($this->countN());
@@ -32,7 +32,8 @@ class RateService
         $base = (float) PartnerConfig::get('partner_madow_base_rate', 0.00000075);
         $step = intval(PartnerConfig::get('partner_madow_step_orders', 1));
         $step = $step > 0 ? $step : 1;
-        return $base * floor($n / $step);
+        $multiple = max(1, floor($n / $step));
+        return function_exists('bcmul') ? (float) bcmul((string) $base, (string) $multiple, 10) : (float) ($base * $multiple);
     }
 
     public function countN()