feat: 归档旧迁移文件，创建初始化数据迁移和重置脚本

migrations/archive/000083_add_personal_customer_openid.up.sql

@@ -0,0 +1,35 @@
+-- 新增个人客户 OpenID 关联表
+-- 保存客户在不同微信应用（公众号/小程序）下的 OpenID 记录
+CREATE TABLE IF NOT EXISTS tb_personal_customer_openid (
+    id BIGSERIAL PRIMARY KEY,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    deleted_at TIMESTAMPTZ,
+    customer_id BIGINT NOT NULL,
+    app_id VARCHAR(100) NOT NULL,
+    open_id VARCHAR(100) NOT NULL,
+    union_id VARCHAR(100) NOT NULL DEFAULT '',
+    app_type VARCHAR(20) NOT NULL DEFAULT ''
+);
+
+-- 软删除条件下的唯一索引：同一应用下 OpenID 唯一
+CREATE UNIQUE INDEX IF NOT EXISTS idx_pco_app_id_open_id
+    ON tb_personal_customer_openid (app_id, open_id)
+    WHERE deleted_at IS NULL;
+
+-- 客户ID索引：按客户查询所有 OpenID 记录
+CREATE INDEX IF NOT EXISTS idx_pco_customer_id
+    ON tb_personal_customer_openid (customer_id);
+
+-- UnionID索引：按 UnionID 回查合并客户
+CREATE INDEX IF NOT EXISTS idx_pco_union_id
+    ON tb_personal_customer_openid (union_id)
+    WHERE union_id != '' AND deleted_at IS NULL;
+
+-- 字段注释
+COMMENT ON TABLE tb_personal_customer_openid IS '个人客户OpenID关联表';
+COMMENT ON COLUMN tb_personal_customer_openid.customer_id IS '关联个人客户ID';
+COMMENT ON COLUMN tb_personal_customer_openid.app_id IS '微信应用标识（公众号或小程序AppID）';
+COMMENT ON COLUMN tb_personal_customer_openid.open_id IS '当前应用下的OpenID';
+COMMENT ON COLUMN tb_personal_customer_openid.union_id IS '微信开放平台统一标识（可选）';
+COMMENT ON COLUMN tb_personal_customer_openid.app_type IS '应用类型（official_account/miniapp）';