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/ui/public/manifest.webmanifest

@@ -0,0 +1,23 @@
+{
+  "name": "NomiFun",
+  "short_name": "NomiFun",
+  "description": "NomiFun WebUI for mobile and desktop browsers.",
+  "start_url": "./",
+  "scope": "./",
+  "display": "standalone",
+  "orientation": "portrait",
+  "background_color": "#ffffff",
+  "theme_color": "#4E5969",
+  "icons": [
+    {
+      "src": "./pwa/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "./pwa/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ]
+}