chore: 恢复旧布局基线（迁移改动丢失后重建，apps/packages 布局暂存）

src-tauri/capabilities/default.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "default",
+  "description": "Default capabilities for the OpsxDB main window",
+  "windows": [
+    "main"
+  ],
+  "permissions": [
+    "core:default",
+    "window-state:default",
+    "opener:default"
+  ]
+}