Update: 将子项目从 submodule 转为完整内容

- 移除 GovAI, nomifun-tauri, 算力盒子 的 submodule 引用
- 添加所有子项目的完整源代码
- 保留原始 .git 为 .git.bak 备份

nomifun-tauri/crates/backend/nomifun-app/tests/removed_surfaces_e2e.rs

@@ -0,0 +1,21 @@
+//! Regression checks for product surfaces that have been intentionally removed.
+
+mod common;
+
+use axum::http::StatusCode;
+use tower::ServiceExt;
+
+use common::{build_app, get_with_token, setup_and_login};
+
+#[tokio::test]
+async fn removed_console_home_api_is_not_registered() {
+    let (mut app, services) = build_app().await;
+    let (token, _csrf) = setup_and_login(&mut app, &services, "admin", "StrongP@ss1").await;
+
+    let resp = app
+        .oneshot(get_with_token("/api/console/home", &token))
+        .await
+        .unwrap();
+
+    assert_eq!(resp.status(), StatusCode::NOT_FOUND);
+}