功能: 启用 Tauri asset 协议支持 webview 本地图片预览

- Cargo.toml 开启 protocol-asset feature
- tauri.conf.json 配置 assetProtocol scope=**
- Cargo.lock 同步 http-range 依赖

src-tauri/Cargo.toml

@@ -14,7 +14,7 @@ tauri-build = { version = "2", features = [] }
 
 [dependencies]
 # Phase3 桌面内嵌 HTTP MCP server + 托盘常驻:tray-icon feature 非默认,必须显式启用
-tauri = { version = "2", features = ["tray-icon"] }
+tauri = { version = "2", features = ["protocol-asset", "tray-icon"] }
 tauri-plugin-dialog = "2"
 tauri-plugin-opener = "2"
 tauri-plugin-window-state = "2"