feat: 客户归属支持多分销商 + 阶梯折扣表

discount_customer_bind:
- UNIQUE(customerid) → UNIQUE(customerid, resellerid)
  一个客户可绑定多个分销商
- bind_type: 加 3=域名注册
- 索引重命名: idx_dcb_customer → idx_dcb_customer_reseller

reseller_discount_tier (新增):
- 分销商阶梯折扣: name, min_amount, max_amount, discount_pct
- 按累计消费自动匹配档位

json/reseller_discount_tier.json

@@ -0,0 +1,26 @@
+{
+    "tblname": "reseller_discount_tier",
+    "title": "阶梯折扣管理",
+    "params": {
+        "sortby": "sort_order asc",
+        "logined_userorgid": "resellerid",
+        "browserfields": {
+            "exclouded": ["id"],
+            "alters": {
+                "status": {
+                    "uitype": "code",
+                    "data": [
+                        {"value": "active", "text": "启用"},
+                        {"value": "inactive", "text": "停用"}
+                    ]
+                }
+            }
+        },
+        "editexclouded": ["id", "created_at", "updated_at"],
+        "editable": {
+            "new_data_url": "{{entire_url('../api/reseller_discount_tier_create.dspy')}}",
+            "update_data_url": "{{entire_url('../api/reseller_discount_tier_update.dspy')}}",
+            "delete_data_url": "{{entire_url('../api/reseller_discount_tier_delete.dspy')}}"
+        }
+    }
+}

models/discount_customer_bind.json

@@ -24,7 +24,7 @@
         },
         {
             "name": "resellerid",
-            "title": "归属商户机构id",
+            "title": "归属分销商机构id",
             "type": "str",
             "length": 32,
             "nullable": "no"
@@ -38,13 +38,13 @@
         },
         {
             "name": "promo_code_id",
-            "title": "促销码id(可空=手动分配)",
+            "title": "促销码id(空=非促销码方式)",
             "type": "str",
             "length": 32
         },
         {
             "name": "bind_type",
-            "title": "绑定方式(1=促销码 2=手动分配)",
+            "title": "绑定方式(1=促销码 2=手动 3=域名注册)",
             "type": "char",
             "length": 1,
             "default": "1",
@@ -59,9 +59,9 @@
     ],
     "indexes": [
         {
-            "name": "idx_dcb_customer",
+            "name": "idx_dcb_customer_reseller",
             "idxtype": "unique",
-            "idxfields": ["customerid"]
+            "idxfields": ["customerid", "resellerid"]
         },
         {
             "name": "idx_dcb_reseller",

models/reseller_discount_tier.json

@@ -0,0 +1,113 @@
+{
+    "summary": [
+        {
+            "name": "reseller_discount_tier",
+            "title": "分销商阶梯折扣",
+            "primary": ["id"],
+            "catelog": "entity"
+        }
+    ],
+    "fields": [
+        {
+            "name": "id",
+            "title": "主键ID",
+            "type": "str",
+            "length": 32,
+            "nullable": "no"
+        },
+        {
+            "name": "resellerid",
+            "title": "分销商机构ID",
+            "type": "str",
+            "length": 32,
+            "nullable": "no"
+        },
+        {
+            "name": "name",
+            "title": "档位名称",
+            "type": "str",
+            "length": 50,
+            "nullable": "no"
+        },
+        {
+            "name": "min_amount",
+            "title": "最低消费金额",
+            "type": "float",
+            "length": 18,
+            "dec": 2,
+            "nullable": "no",
+            "default": "0.00"
+        },
+        {
+            "name": "max_amount",
+            "title": "最高消费金额(NULL=无上限)",
+            "type": "float",
+            "length": 18,
+            "dec": 2,
+            "nullable": "yes"
+        },
+        {
+            "name": "discount_pct",
+            "title": "折扣百分比",
+            "type": "float",
+            "length": 5,
+            "dec": 2,
+            "nullable": "no"
+        },
+        {
+            "name": "sort_order",
+            "title": "排序",
+            "type": "int",
+            "length": 4,
+            "nullable": "no",
+            "default": "0"
+        },
+        {
+            "name": "status",
+            "title": "状态",
+            "type": "str",
+            "length": 10,
+            "nullable": "no",
+            "default": "active"
+        },
+        {
+            "name": "created_at",
+            "title": "创建时间",
+            "type": "timestamp",
+            "nullable": "no"
+        },
+        {
+            "name": "updated_at",
+            "title": "更新时间",
+            "type": "timestamp",
+            "nullable": "no"
+        }
+    ],
+    "indexes": [
+        {
+            "name": "idx_rdt_reseller_order",
+            "idxtype": "index",
+            "idxfields": ["resellerid", "sort_order"]
+        },
+        {
+            "name": "idx_rdt_amount",
+            "idxtype": "index",
+            "idxfields": ["resellerid", "min_amount"]
+        }
+    ],
+    "codes": [
+        {
+            "field": "resellerid",
+            "table": "organization",
+            "valuefield": "id",
+            "textfield": "orgname"
+        },
+        {
+            "field": "status",
+            "table": "appcodes_kv",
+            "valuefield": "k",
+            "textfield": "v",
+            "cond": "parentid='discount_tier_status'"
+        }
+    ]
+}