feat(industry): Phase 1 行业配置基础 — 数据模型 + 四行业内置配置 + ButlerRouter 动态关键词

- 新增 SaaS industry 模块 (types/service/handlers/mod/builtin)
- 4 行业内置配置: healthcare/education/garment/ecommerce
- 数据库迁移: industries + account_industries 表
- 8 个 API 端点 (CRUD + 用户行业关联)
- ButlerRouter 改造: 支持 IndustryKeywordConfig 动态注入
- 12 个测试全通过 (含动态行业分类测试)

crates/zclaw-saas/src/db.rs

@@ -5,7 +5,7 @@ use sqlx::PgPool;
 use crate::config::DatabaseConfig;
 use crate::error::SaasResult;
 
-const SCHEMA_VERSION: i32 = 14;
+const SCHEMA_VERSION: i32 = 15;
 
 /// 初始化数据库
 pub async fn init_db(config: &DatabaseConfig) -> SaasResult<PgPool> {
@@ -42,6 +42,7 @@ pub async fn init_db(config: &DatabaseConfig) -> SaasResult<PgPool> {
     ensure_security_columns(&pool).await?;
     seed_admin_account(&pool).await?;
     seed_builtin_prompts(&pool).await?;
+    seed_builtin_industries(&pool).await?;
     seed_demo_data(&pool).await?;
     fix_seed_data(&pool).await?;
     tracing::info!("Database initialized (schema v{})", SCHEMA_VERSION);
@@ -998,6 +999,11 @@ async fn ensure_security_columns(pool: &PgPool) -> SaasResult<()> {
     Ok(())
 }
 
+/// 种子化内置行业配置
+async fn seed_builtin_industries(pool: &PgPool) -> SaasResult<()> {
+    crate::industry::service::seed_builtin_industries(pool).await
+}
+
 #[cfg(test)]
 mod tests {
     // PostgreSQL 单元测试需要真实数据库连接，此处保留接口兼容