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/entitlements.plist

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <!-- iOS development entitlements. Applied to device builds only
+         (task ios:package IOS_PLATFORM=device). Add capability keys here
+         (e.g. aps-environment) as your app needs them. -->
+    <key>get-task-allow</key>
+    <true/>
+</dict>
+</plist>