fix: enhance file paste handler to support clipboard images on Linux with Tauri

src/app/hooks/useFilePasteHandler.ts

@@ -1,11 +1,24 @@
 import { useCallback, ClipboardEventHandler } from 'react';
 import { getDataTransferFiles } from '../utils/dom';
+import { readClipboardImage, isTauri, isLinux } from '../utils/tauri';
 
 export const useFilePasteHandler = (onPaste: (file: File[]) => void): ClipboardEventHandler =>
   useCallback(
-    (evt) => {
+    async (evt) => {
       const files = getDataTransferFiles(evt.clipboardData);
-      if (files) onPaste(files);
+      if (files && files.length > 0) {
+        onPaste(files);
+        return;
+      }
+
+      // On Linux with Tauri, browser clipboard API doesn't work for images
+      // Use our custom Tauri command with arboard/Wayland support
+      if (isTauri() && isLinux()) {
+        const clipboardImage = await readClipboardImage();
+        if (clipboardImage) {
+          onPaste([clipboardImage]);
+        }
+      }
     },
     [onPaste]
   );