feat(pay): zibll-style pay_modo/points/pay_limit, VIP quota, and local speed stream

Expand post pay meta with cash/points modes and member purchase limits,
enforce free-download daily quotas, and stream local files with VIP speed
caps while keeping remote links on redirect.

inc/helpers/aksrt-resource.php

@@ -169,30 +169,44 @@ if (!function_exists('aksrt_resource_card_badge_text')) {
             return '';
         }
 
-        $price = (float) ($meta['price'] ?? 0);
+        $pay_modo = (($meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0';
+        $pay_limit = (int) ($meta['pay_limit'] ?? 0);
+        $price = $pay_modo === 'points'
+            ? (float) ($meta['points_price'] ?? 0)
+            : (float) ($meta['price'] ?? 0);
         $type_labels = function_exists('aksrt_get_pay_types') ? aksrt_get_pay_types() : [];
         $type_name = $type_labels[$pay_type] ?? __('付费内容', 'aksrt');
 
-        // VIP-only posts.
-        if ($pay_type === 'vip') {
+        // VIP-only / purchase limit (Zibll pay_limit).
+        if ($pay_type === 'vip' || $pay_limit > 0) {
             return __('会员专属', 'aksrt');
         }
 
-        // Free paid-type (price 0): Zibll shows "免费资源" / free type name.
+        // Free paid-type (price 0).
         if ($price <= 0) {
             if ($pay_type === 'download') {
                 return __('免费资源', 'aksrt');
             }
-            // e.g. 付费阅读 → 免费阅读
             return str_replace(__('付费', 'aksrt'), __('免费', 'aksrt'), (string) $type_name);
         }
 
-        $currency = class_exists('AKSRT_Settings') ? AKSRT_Settings::get_currency_name() : __('积分', 'aksrt');
-        $amount = function_exists('aksrt_resource_price_amount')
-            ? aksrt_resource_price_amount($price)
-            : (string) $price;
+        if ($pay_modo === 'points') {
+            $currency = class_exists('AKSRT_Settings') ? AKSRT_Settings::get_currency_name() : __('积分', 'aksrt');
+            $amount = function_exists('aksrt_resource_price_amount')
+                ? aksrt_resource_price_amount($price)
+                : (string) (int) $price;
+            return sprintf('%s %s%s', $type_name, $amount, $currency);
+        }
 
-        return sprintf('%s %s%s', $type_name, $amount, $currency);
+        $symbol = '￥';
+        if (class_exists('AKSRT_Settings')) {
+            $paid = AKSRT_Settings::get_paid_content_settings();
+            $symbol = (string) ($paid['display']['currency_symbol'] ?? '￥');
+        }
+        $amount = function_exists('aksrt_format_price')
+            ? aksrt_format_price($price)
+            : (string) $price;
+        return sprintf('%s %s%s', $type_name, $symbol, $amount);
     }
 }
 
@@ -417,21 +431,44 @@ if (!function_exists('aksrt_resource_download_cost')) {
      */
     function aksrt_resource_download_cost($post = null): int {
         $meta = aksrt_get_resource_meta($post);
+        // Prefer unified pay meta when available (pay_modo / points_price).
+        if (function_exists('aksrt_get_pay_meta')) {
+            $pay = aksrt_get_pay_meta($post);
+            if (is_array($pay) && (($pay['pay_type'] ?? '') === 'download' || !empty($pay['downloads']))) {
+                $meta = array_merge($meta, $pay);
+            }
+        }
         $paid_settings = class_exists('AKSRT_Settings')
             ? AKSRT_Settings::get_paid_content_settings()
             : [
                 'download_credit' => true,
                 'default_cost'    => 0,
             ];
-        if (empty($paid_settings['download_credit'])) return 0;
+
+        $pay_modo = (($meta['pay_modo'] ?? '0') === 'points') ? 'points' : '0';
+        // Cash mode: do not deduct credits for download unlock (order/cash checkout path).
+        // Points mode or legacy credit gate: use points_price / price.
+        if ($pay_modo !== 'points' && empty($paid_settings['download_credit'])) {
+            return 0;
+        }
+        if ($pay_modo === '0' && empty($paid_settings['download_credit'])) {
+            // Cash purchase path — cost handled by orders, not credit deduct.
+            return 0;
+        }
+
         if (function_exists('get_current_user_id') && aksrt_is_download_credit_exempt_user((int) get_current_user_id())) {
             return 0;
         }
-        $price = (float) $meta['price'];
+
+        if ($pay_modo === 'points') {
+            $price = (float) ($meta['points_price'] ?? $meta['price'] ?? 0);
+        } else {
+            // When download_credit is on, treat price as credit cost (legacy AKSRT).
+            $price = (float) ($meta['price'] ?? 0);
+        }
         if ($price > 0) {
             return (int) ceil($price);
         }
-        // 单条未设价格 → 回退到全局默认价
         return max(0, (int) ($paid_settings['default_cost'] ?? 0));
     }
 }