Disable Tauri OS drag-drop so panes can be rearranged in standalone.

Tauri 2's default `dragDropEnabled: true` captures OS drag-drop natively
and blocks HTML5 drag events on Windows, which broke Dockview pane
reordering in the standalone app. Setting it to false restores pane
drag at the cost of file/image-drop-to-paste, which is now tracked at
#38 (blocked on tauri-apps/tauri#14373). The
file-drop wiring is left in place as inert stubs so re-enabling is a
small change once upstream offers a way to receive paths without
blocking webview drag events.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: nedtwigg

lib/src/components/wall/use-session-persistence.ts

@@ -97,6 +97,7 @@ export function useSessionPersistence({
     platform.onRequestSessionFlush(handleSessionFlushRequest);
     window.addEventListener('pagehide', handlePageHide);
 
+    // Inert in Tauri standalone today; see diffplug/mouseterm#38 and tauri-apps/tauri#14373.
     const unsubFilesDropped = platform.onFilesDropped?.((paths) => {
       if (paths.length === 0) return;
       const sid = selectedTypeRef.current === 'pane' ? selectedIdRef.current : null;

lib/src/lib/platform/types.ts

@@ -29,7 +29,7 @@ export interface PlatformAdapter {
   // Clipboard support for file references and raw images.
   readClipboardFilePaths(): Promise<string[] | null>;
   readClipboardImageAsFilePath(): Promise<string | null>;
-  // Only present on adapters with a native (non-DOM) drag-drop source.
+  // Only present on adapters with a native (non-DOM) drag-drop source. Currently inert in Tauri; see diffplug/mouseterm#38 and tauri-apps/tauri#14373.
   onFilesDropped?(handler: (paths: string[]) => void): () => void;
 
   // PTY event listeners

standalone/src-tauri/src/lib.rs

@@ -508,6 +508,7 @@ pub fn run() {
             let refs: Vec<&dyn tauri::menu::IsMenuItem<_>> = items.iter().map(|b| b.as_ref()).collect();
             Menu::with_items(handle, &refs)
         })
+        // Inert while tauri.conf.json sets dragDropEnabled=false (needed for HTML5 pane drag). See diffplug/mouseterm#38 and tauri-apps/tauri#14373.
         .on_window_event(|window, event| {
             if let WindowEvent::DragDrop(DragDropEvent::Drop { paths, .. }) = event {
                 let payload: Vec<String> = paths

standalone/src-tauri/tauri.conf.json

@@ -17,7 +17,8 @@
         "hiddenTitle": true,
         "width": 1200,
         "height": 800,
-        "resizable": true
+        "resizable": true,
+        "dragDropEnabled": false
       }
     ],
     "security": {

standalone/src/tauri-adapter.ts

@@ -78,6 +78,7 @@ export class TauriAdapter implements PlatformAdapter {
       }),
     );
 
+    // Inert while dragDropEnabled=false in tauri.conf.json. See diffplug/mouseterm#38 and tauri-apps/tauri#14373.
     this.unlistenFns.push(
       await listen<{ paths: string[] }>("mouseterm://files-dropped", (event) => {
         const paths = event.payload.paths ?? [];