fix(models): 账务表补多币种字段(currency/exchange_rate/base_amount)

get_user_currency 查 account.currency 报 Unknown column——migration SQL 给 5 张账务表
加了多币种列但 models json 未同步。逐表对齐 multi_currency_migration.sql：
- account: +currency
- bill: +currency +base_amount
- bill_detail/ledger/acc_detail: +currency +exchange_rate +base_amount

models/acc_detail.json

@@ -55,6 +55,29 @@
             "length": 18,
             "dec": 2
         },
+        {
+            "name": "currency",
+            "title": "币种",
+            "type": "str",
+            "length": 3,
+            "nullable": "yes"
+        },
+        {
+            "name": "exchange_rate",
+            "title": "汇率",
+            "type": "double",
+            "length": 14,
+            "dec": 6,
+            "nullable": "yes"
+        },
+        {
+            "name": "base_amount",
+            "title": "折本位币金额",
+            "type": "double",
+            "length": 20,
+            "dec": 2,
+            "nullable": "yes"
+        },
         {
             "name": "balance",
             "title": "账户余额",
@@ -69,4 +92,4 @@
             "length": 32
         }
     ]
-}
+}

models/account.json

@@ -33,6 +33,13 @@
             "type": "str",
             "length": 32
         },
+        {
+            "name": "currency",
+            "title": "币种",
+            "type": "str",
+            "length": 3,
+            "nullable": "yes"
+        },
         {
             "name": "subjectid",
             "title": "科目号",
@@ -97,4 +104,4 @@
             "textfield": "orgname"
         }
     ]
-}
+}

models/bill.json

@@ -58,6 +58,21 @@
             "length": 18,
             "dec": 2
         },
+        {
+            "name": "currency",
+            "title": "币种",
+            "type": "str",
+            "length": 3,
+            "nullable": "yes"
+        },
+        {
+            "name": "base_amount",
+            "title": "折本位币金额",
+            "type": "double",
+            "length": 20,
+            "dec": 2,
+            "nullable": "yes"
+        },
         {
             "name": "bill_date",
             "title": "账单日期",
@@ -75,4 +90,4 @@
             "length": 1
         }
     ]
-}
+}

models/bill_detail.json

@@ -63,6 +63,29 @@
             "type": "float",
             "length": 18,
             "dec": 2
+        },
+        {
+            "name": "currency",
+            "title": "币种",
+            "type": "str",
+            "length": 3,
+            "nullable": "yes"
+        },
+        {
+            "name": "exchange_rate",
+            "title": "汇率",
+            "type": "double",
+            "length": 14,
+            "dec": 6,
+            "nullable": "yes"
+        },
+        {
+            "name": "base_amount",
+            "title": "折本位币金额",
+            "type": "double",
+            "length": 20,
+            "dec": 2,
+            "nullable": "yes"
         }
     ]
-}
+}

models/ledger.json

@@ -45,6 +45,29 @@
             "type": "float",
             "length": 18,
             "dec": 2
+        },
+        {
+            "name": "currency",
+            "title": "币种",
+            "type": "str",
+            "length": 3,
+            "nullable": "yes"
+        },
+        {
+            "name": "exchange_rate",
+            "title": "汇率",
+            "type": "double",
+            "length": 14,
+            "dec": 6,
+            "nullable": "yes"
+        },
+        {
+            "name": "base_amount",
+            "title": "折本位币金额",
+            "type": "double",
+            "length": 20,
+            "dec": 2,
+            "nullable": "yes"
         }
     ]
-}
+}