fix(desktop): 加载 loading 页面作为启动屏，配置平台级 extraResources 对接交叉编译

- main process 启动时先加载 renderer/index.html 显示 spinner
- electron-builder 按平台引用 server/out/ 下对应架构的 sidecar binary
- 移除 mise.toml 中无关的 rust 工具配置

apps/desktop/electron-builder.yml

@@ -9,15 +9,13 @@ files:
   - '!{.env,.env.*,bun.lock}'
   - '!{tsconfig.json,tsconfig.node.json}'
   - '!{AGENTS.md,README.md,CHANGELOG.md}'
-extraResources:
-  - from: resources/
-    to: .
-    filter:
-      - '**/*'
 asarUnpack:
   - resources/**
 win:
   executableName: Furtherverse
+  extraResources:
+    - from: ../server/out/server-windows-x64.exe
+      to: server.exe
 nsis:
   artifactName: ${name}-${version}-setup.${ext}
   shortcutName: ${productName}
@@ -25,6 +23,9 @@ nsis:
   createDesktopShortcut: always
 mac:
   category: public.app-category.productivity
+  extraResources:
+    - from: ../server/out/server-darwin-arm64
+      to: server
 dmg:
   artifactName: ${name}-${version}.${ext}
 linux:
@@ -33,6 +34,9 @@ linux:
     - deb
   maintainer: furtherverse.com
   category: Utility
+  extraResources:
+    - from: ../server/out/server-linux-x64
+      to: server
 appImage:
   artifactName: ${name}-${version}.${ext}
 npmRebuild: false