feat(db): 添加 pgvector 扩展迁移 — 知识库向量检索基础

Phase 3 Task 20: CREATE EXTENSION IF NOT EXISTS vector

crates/erp-server/migration/src/lib.rs

@@ -118,6 +118,7 @@ mod m20260505_000115_family_member_health_proxy;
 mod m20260505_000116_seed_missing_health_menus;
 mod m20260505_000117_create_ai_tenant_configs;
 mod m20260505_000118_create_ai_analysis_queue;
+mod m20260505_000119_enable_pgvector;
 
 pub struct Migrator;
 
@@ -243,6 +244,7 @@ impl MigratorTrait for Migrator {
             Box::new(m20260505_000116_seed_missing_health_menus::Migration),
             Box::new(m20260505_000117_create_ai_tenant_configs::Migration),
             Box::new(m20260505_000118_create_ai_analysis_queue::Migration),
+            Box::new(m20260505_000119_enable_pgvector::Migration),
         ]
     }
 }