fix(ai): Copilot 审计修复 — C-1/H-1/H-2/H-3/H-4/H-5/L-2

- L-2: value_to_f64 对 Null 返回 NaN（防止误触发规则）
- C-1: load_patient_data 空数据时跳过写入快照
- H-1: 每日刷新定时器添加初始延迟
- H-2: copilot_consumer 传内层 content
- H-3: 前端 hooks/Alert 修复分页响应解析
- H-4: risk_handler 动态选择 AI provider
- H-5: 新增 DELETE /copilot/rules/{id} 软删除路由

crates/erp-ai/src/handler/risk_handler.rs

@@ -16,12 +16,21 @@ where
 {
     require_permission(&ctx, "copilot.risk.view")?;
 
+    // 动态选择第一个可用的 AI 提供商（优先 ollama，其次其他）
+    let provider_name = state
+        .provider_registry
+        .provider_names()
+        .into_iter()
+        .find(|n| n == "ollama")
+        .or_else(|| state.provider_registry.provider_names().into_iter().next())
+        .unwrap_or_default();
+
     let risk = crate::service::risk_service::RiskService::compute_risk_with_llm(
         &state.db,
         ctx.tenant_id,
         patient_id,
         &state.provider_registry,
-        "ollama",
+        &provider_name,
     )
     .await?;
 

crates/erp-ai/src/handler/rule_handler.rs

@@ -127,3 +127,31 @@ where
     let result = active.update(&state.db).await?;
     Ok(Json(ApiResponse::ok(result)))
 }
+
+pub async fn delete_rule<S>(
+    State(state): State<AiState>,
+    Extension(ctx): Extension<TenantContext>,
+    Path(rule_id): Path<uuid::Uuid>,
+) -> Result<Json<ApiResponse<serde_json::Value>>, erp_core::error::AppError>
+where
+    AiState: FromRef<S>,
+    S: Clone + Send + Sync + 'static,
+{
+    require_permission(&ctx, "copilot.rules.manage")?;
+
+    let model = copilot_rules::Entity::find()
+        .filter(copilot_rules::Column::Id.eq(rule_id))
+        .filter(copilot_rules::Column::TenantId.eq(ctx.tenant_id))
+        .filter(copilot_rules::Column::DeletedAt.is_null())
+        .one(&state.db)
+        .await?
+        .ok_or_else(|| erp_core::error::AppError::NotFound("Copilot 规则".into()))?;
+
+    let mut active: copilot_rules::ActiveModel = model.into();
+    active.deleted_at = Set(Some(chrono::Utc::now()));
+    active.updated_at = Set(chrono::Utc::now());
+    active.updated_by = Set(Some(ctx.user_id));
+    active.update(&state.db).await?;
+
+    Ok(Json(ApiResponse::ok(serde_json::json!({"deleted": true}))))
+}