chore(wails): scaffold v3 project boilerplate

Wails v3 replaces the NPM-only dev entry point. This adds the Go module,
Taskfile, build metadata, and a minimal window shell without touching
frontend logic.

Co-authored-by: Cursor <cursoragent@cursor.com>

build/ios/main_ios.go

@@ -0,0 +1,23 @@
+//go:build ios
+
+package main
+
+import (
+	"C"
+)
+
+// For iOS builds we export a function the WailsAppDelegate can call.
+// This wrapper keeps the user's main.go unmodified.
+
+// WailsIOSMain runs the user's main() (application.New / app.Run). It is invoked
+// by the WailsAppDelegate from didFinishLaunchingWithOptions — i.e. only AFTER
+// UIKit has launched — on a BACKGROUND thread, so the Go runtime never starts
+// concurrently with UIApplicationMain (that race intermittently corrupts the
+// FrontBoard launch handshake on a physical device → blank cold launch /
+// scene-create watchdog 0x8BADF00D). Keeping all app setup off the OS main
+// thread also leaves UIApplicationMain unobstructed on the main thread.
+//
+//export WailsIOSMain
+func WailsIOSMain() {
+	main()
+}