Add Tauri desktop scaffolding and improve response rendering.

This updates project metadata/scripts for desktop builds, adds Tauri app files, refreshes release artifacts, and improves results preview handling for structured and think-tagged responses.

Made-with: Cursor

src-tauri/src/lib.rs

@@ -0,0 +1,7 @@
+#[cfg_attr(mobile, tauri::mobile_entry_point)]
+pub fn run() {
+  tauri::Builder::default()
+    .plugin(tauri_plugin_opener::init())
+    .run(tauri::generate_context!())
+    .expect("error while running tauri application");
+}

src-tauri/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+  dify_batch_tester_lib::run()
+}