feat(settings): add media hosting settings and provider-based upload gating

src/stores/__tests__/use-media-hosting-store.test.ts

@@ -0,0 +1,42 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import useMediaHostingStore, { MEDIA_HOSTING_PROVIDERS } from '../use-media-hosting-store';
+
+const STORAGE_KEY = 'media-hosting-storage';
+
+describe('useMediaHostingStore', () => {
+  let setItemSpy: ReturnType<typeof vi.spyOn>;
+
+  beforeEach(() => {
+    localStorage.removeItem(STORAGE_KEY);
+    setItemSpy = vi.spyOn(Storage.prototype, 'setItem');
+  });
+
+  afterEach(() => {
+    setItemSpy.mockRestore();
+    useMediaHostingStore.getState().setSelectedProvider('catbox');
+  });
+
+  it('exports MEDIA_HOSTING_PROVIDERS with at least Catbox provider', () => {
+    expect(MEDIA_HOSTING_PROVIDERS).toBeDefined();
+    expect(MEDIA_HOSTING_PROVIDERS.length).toBeGreaterThanOrEqual(1);
+    const catbox = MEDIA_HOSTING_PROVIDERS.find((p) => p.id === 'catbox');
+    expect(catbox).toEqual({ id: 'catbox', name: 'Catbox', url: 'https://catbox.moe' });
+  });
+
+  it('defaults selectedProvider to catbox', () => {
+    const { selectedProvider } = useMediaHostingStore.getState();
+    expect(selectedProvider).toBe('catbox');
+  });
+
+  it('sets selectedProvider to none when setSelectedProvider is called with none', () => {
+    useMediaHostingStore.getState().setSelectedProvider('none');
+    const { selectedProvider } = useMediaHostingStore.getState();
+    expect(selectedProvider).toBe('none');
+  });
+
+  it('persists state to localStorage when setSelectedProvider is called', () => {
+    useMediaHostingStore.getState().setSelectedProvider('none');
+
+    expect(setItemSpy).toHaveBeenCalledWith(STORAGE_KEY, expect.stringContaining('"selectedProvider":"none"'));
+  });
+});