优化计费规则注释，新增三边规则处理逻辑

bms-back/bms-system/src/main/java/com/bms/price/service/impl/PrcOrderBillServiceImpl.java

@@ -3127,7 +3127,7 @@ public class PrcOrderBillServiceImpl implements IPrcOrderBillService
     }
 
     /**
-     * 业务规则计费重量（VOL_8000 等）。
+     * 业务规则计费重量（THREE_SIDE / VOL_8000）。
      * 如需禁用：注释掉 resolveWeightByRule 调用，始终返回 baseWeight。
      */
     private BigDecimal applyBizRuleWeight(TmsPriceBillRequest request, BigDecimal baseWeight)

bms-back/bms-system/src/main/java/com/bms/system/service/IBmsBizRuleService.java

@@ -21,7 +21,7 @@ public interface IBmsBizRuleService
     int deleteByIds(Long[] ruleIds);
 
     /**
-     * 将生效的重量规则（目前为 VOL_8000）应用到计费请求。
+     * 将生效的重量规则（THREE_SIDE / VOL_8000）应用到计费请求。
      * @return 规则命中时返回覆盖后的计费重量；无规则适用时返回 null
      */
     BigDecimal resolveWeightByRule(TmsPriceBillRequest request, BigDecimal systemWeight);

bms-back/bms-system/src/main/java/com/bms/system/service/impl/BmsBizRuleServiceImpl.java

@@ -136,8 +136,12 @@ public class BmsBizRuleServiceImpl implements IBmsBizRuleService
         {
             return null;
         }
-        // VOL_8000 在本地入库 / 计费时应用。THREE_SIDE 仅作为配置
-        // （上游已应用该产品规则）。
+        // 先三边之和取重，未命中再走 VOL_8000
+        BigDecimal threeSide = resolveThreeSideWeight(request, systemWeight);
+        if (threeSide != null)
+        {
+            return threeSide;
+        }
         BigDecimal vol8000 = resolveVol8000(request, systemWeight);
         if (vol8000 != null)
         {
@@ -146,6 +150,47 @@ public class BmsBizRuleServiceImpl implements IBmsBizRuleService
         return null;
     }
 
+    /**
+     * 三边之和取重：命中 THREE_SIDE 规则时，
+     * L+W+H < 上限取本地收货重；>= 上限取已有计费重。
+     *
+     * @param existingChargeWeight 当前已有计费重（未被三边规则覆盖前）
+     * @return 命中规则时返回计费重；未命中返回 null
+     */
+    private BigDecimal resolveThreeSideWeight(TmsPriceBillRequest request, BigDecimal existingChargeWeight)
+    {
+        List<BmsBizRule> rules = bizRuleMapper.selectActiveByType(RULE_TYPE_THREE_SIDE);
+        if (rules == null || rules.isEmpty())
+        {
+            return null;
+        }
+        for (BmsBizRule rule : rules)
+        {
+            if (!matchThreeSideDims(rule, request, existingChargeWeight))
+            {
+                continue;
+            }
+            if (rule.getSideSumMax() == null)
+            {
+                continue;
+            }
+            BigDecimal sum = sideSum(request);
+            if (sum == null)
+            {
+                continue;
+            }
+            // 三边之和 < 上限（如 90）：取本地收货重；无收货重则保留已有计费重
+            if (sum.compareTo(rule.getSideSumMax()) < 0)
+            {
+                BigDecimal receiveWeight = firstPositive(request.getReceiveWeight());
+                return receiveWeight != null ? receiveWeight : existingChargeWeight;
+            }
+            // 三边之和 >= 上限：保留已有计费重
+            return existingChargeWeight;
+        }
+        return null;
+    }
+
     /**
      * VOL_8000：chargeWeight = max(L*W*H/8000, receive_weight)。
      * 将体积重（/8000）与收货重比较。
@@ -273,7 +318,10 @@ public class BmsBizRuleServiceImpl implements IBmsBizRuleService
         return new ArrayList<String>(set);
     }
 
-    private boolean matchThreeSide(BmsBizRule rule, TmsPriceBillRequest request, BigDecimal systemWeight)
+    /**
+     * 三边规则维度匹配（不包含三边和阈值判断）。
+     */
+    private boolean matchThreeSideDims(BmsBizRule rule, TmsPriceBillRequest request, BigDecimal systemWeight)
     {
         if (rule == null)
         {
@@ -292,19 +340,7 @@ public class BmsBizRuleServiceImpl implements IBmsBizRuleService
             return false;
         }
         BigDecimal checkWeight = firstPositive(request.getReceiveWeight(), systemWeight, request.getWeight());
-        if (!inWeightRange(checkWeight, rule.getWeightMin(), rule.getWeightMax()))
-        {
-            return false;
-        }
-        if (rule.getSideSumMax() != null)
-        {
-            BigDecimal sum = sideSum(request);
-            if (sum == null || sum.compareTo(rule.getSideSumMax()) >= 0)
-            {
-                return false;
-            }
-        }
-        return true;
+        return inWeightRange(checkWeight, rule.getWeightMin(), rule.getWeightMax());
     }
 
     private boolean dimMatch(String requestCode, String ruleCode, boolean tryProductMap)