feat: initial PSG Launcher scaffold

src-tauri/capabilities/default.json

@@ -0,0 +1,23 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "Default capabilities for the main launcher window",
+  "windows": ["main"],
+  "permissions": [
+    "core:default",
+    "updater:default",
+    "updater:allow-check",
+    "updater:allow-download-and-install",
+    "dialog:default",
+    "dialog:allow-message",
+    "shell:default",
+    "process:default",
+    "process:allow-exit",
+    "process:allow-restart",
+    "http:default",
+    "http:allow-fetch",
+    "fs:default",
+    "fs:allow-app-read-recursive",
+    "fs:allow-app-write-recursive"
+  ]
+}