chore: reformat codebase with oxfmt

Apply prettier-compatible formatting across the repo to match the
incoming oxfmt configuration. Mechanical reformat only — no logic
changes. Covers YAML quote normalization, package.json key sorting,
Markdown/TOML formatting, and minor TS whitespace tweaks.

packages/app/src/components/composer.test.tsx

@@ -285,13 +285,7 @@ vi.mock("expo-image", () => ({
 
 vi.mock("react-native", async () => {
   const actual = await vi.importActual<Record<string, unknown>>("react-native");
-  const Modal = ({
-    visible = true,
-    children,
-  }: {
-    visible?: boolean;
-    children?: React.ReactNode;
-  }) =>
+  const Modal = ({ visible = true, children }: { visible?: boolean; children?: React.ReactNode }) =>
     visible ? React.createElement("div", { "data-testid": "lightbox-modal" }, children) : null;
   return { ...actual, Modal };
 });