feat: add name_pinyin_abbr columns for CRM product and customer.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/sql/migrations/2026-08-07-crm-name-pinyin-abbr.sql

@@ -0,0 +1,37 @@
+-- 产品/客户名称拼音首字母（小写）
+-- 若列已存在会报 Duplicate column；可忽略或先查 information_schema。
+-- 建议仅执行一次。
+
+-- crm_product.name_pinyin_abbr
+SET @col_exists := (
+  SELECT COUNT(*)
+  FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'crm_product'
+    AND COLUMN_NAME = 'name_pinyin_abbr'
+);
+SET @sql := IF(
+  @col_exists = 0,
+  'ALTER TABLE `crm_product` ADD COLUMN `name_pinyin_abbr` varchar(100) DEFAULT NULL COMMENT ''产品名称拼音首字母(小写)'' AFTER `product_name`',
+  'SELECT ''crm_product.name_pinyin_abbr already exists, skip'''
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+-- crm_customer.name_pinyin_abbr
+SET @col_exists := (
+  SELECT COUNT(*)
+  FROM information_schema.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'crm_customer'
+    AND COLUMN_NAME = 'name_pinyin_abbr'
+);
+SET @sql := IF(
+  @col_exists = 0,
+  'ALTER TABLE `crm_customer` ADD COLUMN `name_pinyin_abbr` varchar(100) DEFAULT NULL COMMENT ''客户名称拼音首字母(小写)'' AFTER `customer_name`',
+  'SELECT ''crm_customer.name_pinyin_abbr already exists, skip'''
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;