fix: remove nested .git folders, re-add as normal directories

ui/src/lib/theme.spec.ts

@@ -0,0 +1,81 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const { mockBrowser } = vi.hoisted(() => ({
+  mockBrowser: { value: true },
+}));
+
+vi.mock("$app/environment", () => ({
+  get browser() {
+    return mockBrowser.value;
+  },
+}));
+
+// Mock localStorage and document before importing theme
+const mockLocalStorage: Record<string, string> = {};
+vi.stubGlobal("localStorage", {
+  getItem: vi.fn((key: string) => mockLocalStorage[key] ?? null),
+  setItem: vi.fn((key: string, value: string) => {
+    mockLocalStorage[key] = value;
+  }),
+});
+
+vi.stubGlobal("document", {
+  documentElement: {
+    setAttribute: vi.fn(),
+  },
+});
+
+describe("theme store", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    Object.keys(mockLocalStorage).forEach((k) => delete mockLocalStorage[k]);
+    mockBrowser.value = true;
+  });
+
+  it("defaults to dark theme", async () => {
+    // Re-import to get a fresh store
+    const { theme } = await import("./theme");
+
+    let value: string | undefined;
+    const unsub = theme.subscribe((v) => {
+      value = v;
+    });
+
+    expect(value).toBe("dark");
+    unsub();
+  });
+
+  it("toggle switches between dark and light", async () => {
+    const { theme } = await import("./theme");
+
+    let value: string | undefined;
+    const unsub = theme.subscribe((v) => {
+      value = v;
+    });
+
+    theme.toggle();
+    expect(value).toBe("light");
+
+    theme.toggle();
+    expect(value).toBe("dark");
+
+    unsub();
+  });
+
+  it("set updates the theme directly", async () => {
+    const { theme } = await import("./theme");
+
+    let value: string | undefined;
+    const unsub = theme.subscribe((v) => {
+      value = v;
+    });
+
+    theme.set("light");
+    expect(value).toBe("light");
+
+    theme.set("dark");
+    expect(value).toBe("dark");
+
+    unsub();
+  });
+});