fix: persist presets and theme preferences

src/components/video-editor/editorPreferences.test.ts

@@ -37,9 +37,27 @@ function createStorageMock(initialValues: Record<string, string> = {}): Storage
 	};
 }
 
+function stubElectronSettings(initialValues: Record<string, unknown> = {}) {
+	const store = new Map(Object.entries(initialValues));
+
+	Object.defineProperty(globalThis, "electronAPI", {
+		configurable: true,
+		value: {
+			getAppSetting: (key: string) => (store.has(key) ? store.get(key) : null),
+			setAppSetting: (key: string, value: unknown) => {
+				store.set(key, value);
+				return true;
+			},
+		} as Pick<Window["electronAPI"], "getAppSetting" | "setAppSetting">,
+	});
+
+	return store;
+}
+
 describe("editorPreferences", () => {
 	afterEach(() => {
 		vi.unstubAllGlobals();
+		Reflect.deleteProperty(globalThis, "electronAPI");
 	});
 
 	it("normalizes invalid values back to safe defaults", () => {
@@ -69,10 +87,10 @@ describe("editorPreferences", () => {
 		expect(DEFAULT_EDITOR_PREFERENCES.exportQuality).toBe("source");
 	});
 
-	it("defaults cursor preferences to macOS at 2.5x with lighter sway", () => {
+	it("defaults cursor preferences to macOS at 2.5x with gentler sway", () => {
 		expect(DEFAULT_EDITOR_PREFERENCES.cursorStyle).toBe("macos");
 		expect(DEFAULT_EDITOR_PREFERENCES.cursorSize).toBe(2.5);
-		expect(DEFAULT_EDITOR_PREFERENCES.cursorSway).toBe(0.25);
+		expect(DEFAULT_EDITOR_PREFERENCES.cursorSway).toBe(0.4);
 	});
 
 	it("defaults MP4 exports to the Lightning pipeline", () => {
@@ -309,6 +327,24 @@ describe("editorPreferences", () => {
 		});
 	});
 
+	it("loads editor preferences from Electron app settings when available", () => {
+		stubElectronSettings({
+			[EDITOR_PREFERENCES_STORAGE_KEY]: {
+				wallpaper: "#0f172a",
+				showCursor: false,
+				customAspectWidth: "3",
+				customAspectHeight: "2",
+			},
+		});
+
+		expect(loadEditorPreferences()).toMatchObject({
+			wallpaper: "#0f172a",
+			showCursor: false,
+			customAspectWidth: "3",
+			customAspectHeight: "2",
+		});
+	});
+
 	it("saves editor presets and reports success", () => {
 		const localStorage = createStorageMock();
 		vi.stubGlobal("localStorage", localStorage);
@@ -337,6 +373,32 @@ describe("editorPreferences", () => {
 		]);
 	});
 
+	it("saves editor presets to Electron app settings when available", () => {
+		const settingsStore = stubElectronSettings();
+
+		expect(
+			saveEditorPresets([
+				{
+					id: "preset-1",
+					name: "Demo Preset",
+					createdAt: "2026-05-01T00:00:00.000Z",
+					updatedAt: "2026-05-02T00:00:00.000Z",
+					snapshot: {
+						...DEFAULT_EDITOR_PREFERENCES,
+						autoCaptionSettings: DEFAULT_AUTO_CAPTION_SETTINGS,
+					},
+				},
+			]),
+		).toBe(true);
+
+		expect(settingsStore.get(EDITOR_PRESETS_STORAGE_KEY)).toMatchObject([
+			{
+				id: "preset-1",
+				name: "Demo Preset",
+			},
+		]);
+	});
+
 	it("returns false when preset persistence fails", () => {
 		const localStorage = createStorageMock();
 		localStorage.setItem = () => {

src/components/video-editor/editorPreferences.ts

@@ -6,6 +6,7 @@ import {
 	stripPersistedDevMotionBlurSettings,
 	type ProjectEditorState,
 } from "./projectPersistence";
+import { loadAppSetting, saveAppSetting } from "../../lib/appSettings";
 
 type PersistedEditorControls = Pick<
 	ProjectEditorState,
@@ -422,12 +423,13 @@ export function normalizeEditorPreferences(
 }
 
 export function loadEditorPreferences(): EditorPreferences {
-	if (typeof globalThis.localStorage === "undefined") {
-		return DEFAULT_EDITOR_PREFERENCES;
+	const persisted = loadAppSetting<unknown>(EDITOR_PREFERENCES_STORAGE_KEY);
+	if (persisted !== null) {
+		return normalizeEditorPreferences(persisted);
 	}
 
 	try {
-		const stored = globalThis.localStorage.getItem(EDITOR_PREFERENCES_STORAGE_KEY);
+		const stored = globalThis.localStorage?.getItem(EDITOR_PREFERENCES_STORAGE_KEY);
 		if (!stored) {
 			return DEFAULT_EDITOR_PREFERENCES;
 		}
@@ -439,16 +441,14 @@ export function loadEditorPreferences(): EditorPreferences {
 }
 
 export function saveEditorPreferences(preferences: Partial<EditorPreferences>): void {
-	if (typeof globalThis.localStorage === "undefined") {
-		return;
-	}
-
 	try {
 		const current = loadEditorPreferences();
 		const merged = normalizeEditorPreferences({ ...current, ...preferences }, current);
-		globalThis.localStorage.setItem(
+		const persisted = stripPersistedDevMotionBlurSettings(merged);
+		saveAppSetting(EDITOR_PREFERENCES_STORAGE_KEY, persisted);
+		globalThis.localStorage?.setItem(
 			EDITOR_PREFERENCES_STORAGE_KEY,
-			JSON.stringify(stripPersistedDevMotionBlurSettings(merged)),
+			JSON.stringify(persisted),
 		);
 	} catch {
 		// Ignore storage failures so editor controls still work.
@@ -456,12 +456,13 @@ export function saveEditorPreferences(preferences: Partial<EditorPreferences>):
 }
 
 export function loadEditorPresets(): EditorPreset[] {
-	if (typeof globalThis.localStorage === "undefined") {
-		return [];
+	const persisted = loadAppSetting<unknown>(EDITOR_PRESETS_STORAGE_KEY);
+	if (persisted !== null) {
+		return normalizeEditorPresets(persisted);
 	}
 
 	try {
-		const stored = globalThis.localStorage.getItem(EDITOR_PRESETS_STORAGE_KEY);
+		const stored = globalThis.localStorage?.getItem(EDITOR_PRESETS_STORAGE_KEY);
 		if (!stored) {
 			return [];
 		}
@@ -473,14 +474,11 @@ export function loadEditorPresets(): EditorPreset[] {
 }
 
 export function saveEditorPresets(presets: EditorPreset[]): boolean {
-	if (typeof globalThis.localStorage === "undefined") {
-		return false;
-	}
-
 	try {
 		const normalized = normalizeEditorPresets(presets);
-		globalThis.localStorage.setItem(EDITOR_PRESETS_STORAGE_KEY, JSON.stringify(normalized));
-		return true;
+		const persisted = saveAppSetting(EDITOR_PRESETS_STORAGE_KEY, normalized);
+		globalThis.localStorage?.setItem(EDITOR_PRESETS_STORAGE_KEY, JSON.stringify(normalized));
+		return persisted || typeof globalThis.localStorage !== "undefined";
 	} catch {
 		// Ignore storage failures so editor controls still work.
 		return false;

src/components/video-editor/types.ts

@@ -101,7 +101,7 @@ export const DEFAULT_CURSOR_SMOOTHING = 0.67;
 export const DEFAULT_CURSOR_MOTION_BLUR = 0.4;
 export const DEFAULT_CURSOR_CLICK_BOUNCE = 2.5;
 export const DEFAULT_CURSOR_CLICK_BOUNCE_DURATION = 350;
-export const DEFAULT_CURSOR_SWAY = 0.25;
+export const DEFAULT_CURSOR_SWAY = 0.4;
 export const DEFAULT_ZOOM_SMOOTHNESS = 0.5;
 export const DEFAULT_ZOOM_MOTION_BLUR = 0.35;
 export interface ZoomMotionBlurTuning {