feat(plugin): 评估量表 WASM 编译通过 — 170KB cdylib 组件

- wasm32-unknown-unknown target 编译成功
- 插件通过 API upload/install 注册，无需手动配置

crates/erp-points/src/state.rs

@@ -0,0 +1,8 @@
+use erp_core::events::EventBus;
+use sea_orm::DatabaseConnection;
+
+#[derive(Clone)]
+pub struct PointsState {
+    pub db: DatabaseConnection,
+    pub event_bus: EventBus,
+}