Refactor billing options retrieval to include data permissions and add effective date handling for product imports

bms-back/sql/price/prc_income_bill_fee_product_alter.sql

@@ -0,0 +1,15 @@
+-- prc_income_bill_fee: product / redline amounts (run once on existing DB)
+SET @col_exists := (
+  SELECT COUNT(1) FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'prc_income_bill_fee' AND COLUMN_NAME = 'product_amount'
+);
+SET @sql := IF(@col_exists = 0,
+  CONCAT(
+    'ALTER TABLE `prc_income_bill_fee` ',
+    'ADD COLUMN `product_amount` decimal(18,4) DEFAULT NULL COMMENT ''产品价'' AFTER `amount`, ',
+    'ADD COLUMN `redline_amount` decimal(18,4) DEFAULT NULL COMMENT ''红线价'' AFTER `product_amount`'
+  ),
+  'SELECT 1');
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;

bms-back/sql/price/prc_order_bill_service_man_code_alter.sql

@@ -0,0 +1,11 @@
+-- prc_order_bill: service_man_code (run once on existing DB)
+SET @col_exists := (
+  SELECT COUNT(1) FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'prc_order_bill' AND COLUMN_NAME = 'service_man_code'
+);
+SET @sql := IF(@col_exists = 0,
+  'ALTER TABLE `prc_order_bill` ADD COLUMN `service_man_code` varchar(64) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT ''客服员编码'' AFTER `service_man`',
+  'SELECT 1');
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;

bms-back/sql/price/product_effective_datetime_alter.sql

@@ -0,0 +1,8 @@
+-- product / product_country: effective_date & expire_date support hour precision
+ALTER TABLE product
+  MODIFY COLUMN effective_date datetime DEFAULT NULL COMMENT '目录生效时间（到小时）',
+  MODIFY COLUMN expire_date datetime DEFAULT NULL COMMENT '产品失效时间（空=长期；下一版生效时间=本版失效时间）';
+
+ALTER TABLE product_country
+  MODIFY COLUMN effective_date datetime DEFAULT NULL COMMENT '产品价表生效时间（到小时）',
+  MODIFY COLUMN expire_date datetime DEFAULT NULL COMMENT '失效时间（空=开放；下一版导入生效时间=本版失效时间）';