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>

go.mod

@@ -0,0 +1,17 @@
+module sfxkeeb
+
+go 1.25.0
+
+require github.com/wailsapp/wails/v3 v3.0.0-alpha2.109
+
+require (
+	github.com/adrg/xdg v0.5.3 // indirect
+	github.com/coder/websocket v1.8.14 // indirect
+	github.com/go-ole/go-ole v1.3.0 // indirect
+	github.com/godbus/dbus/v5 v5.2.2 // indirect
+	github.com/jchv/go-winloader v0.0.0-20250406163304-c1995be93bd1 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/wailsapp/wails/webview2 v1.0.27 // indirect
+	golang.org/x/sys v0.43.0 // indirect
+)