Erste Version: Tauri-Grundgerüst, WinGet-Anbindung, Selbst-Updater und Release-Skript

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src-tauri/capabilities/default.json

@@ -0,0 +1,7 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "Standardberechtigungen des Hauptfensters",
+  "windows": ["main"],
+  "permissions": ["core:default", "core:window:allow-show", "core:window:allow-set-focus", "opener:allow-open-url", "notification:default", "updater:default"]
+}