refactor(Font): rename fontStore and appliedFontsManager

Both names were vague or overloaded:

- fontStore / FontStore -> fontCatalogStore / FontCatalogStore
  Three font-related stores live in this slice; the new name names the
  paginated catalog specifically.

- appliedFontsManager / AppliedFontsManager -> fontLifecycleManager /
  FontLifecycleManager
  "Applied" collided with the filter-side appliedFilterStore (different
  meaning). The class actually orchestrates a load-use-evict lifecycle
  with FontBufferCache + FontEvictionPolicy + FontLoadQueue
  collaborators, so "Manager" is justified. Companion types file moved
  alongside (appliedFonts.ts -> fontLifecycle.ts).

Directories, file basenames, factory (createFontStore ->
createFontCatalogStore), and the AppliedFontsManagerDeps interface all
renamed. All consumers (ComparisonView, SampleList, FontList,
FontApplicator, FontVirtualList, FilterAndSortFonts bindings,
createFontRowSizeResolver, mocks) updated.

src/entities/Font/model/store/fontCatalogStore/fontCatalogStore.svelte.spec.ts

@@ -17,7 +17,7 @@ import {
     generateMockFonts,
 } from '../../../lib/mocks/fonts.mock';
 import type { UnifiedFont } from '../../types';
-import { FontStore } from './fontStore.svelte';
+import { FontCatalogStore } from './fontCatalogStore.svelte';
 
 vi.mock('$shared/api/queryClient', () => ({
     queryClient: new QueryClient({
@@ -44,7 +44,7 @@ const makeResponse = (
 });
 
 function makeStore(params = {}) {
-    return new FontStore({ limit: 10, ...params });
+    return new FontCatalogStore({ limit: 10, ...params });
 }
 
 async function fetchedStore(params = {}, fonts = generateMockFonts(5), meta: Parameters<typeof makeResponse>[1] = {}) {
@@ -55,7 +55,7 @@ async function fetchedStore(params = {}, fonts = generateMockFonts(5), meta: Par
     return store;
 }
 
-describe('FontStore', () => {
+describe('FontCatalogStore', () => {
     afterEach(() => {
         queryClient.clear();
         vi.resetAllMocks();
@@ -69,7 +69,7 @@ describe('FontStore', () => {
         });
 
         it('defaults limit to 50 when not provided', () => {
-            const store = new FontStore();
+            const store = new FontCatalogStore();
             expect(store.params.limit).toBe(50);
             store.destroy();
         });
@@ -390,11 +390,11 @@ describe('FontStore', () => {
     });
 
     describe('nextPage', () => {
-        let store: FontStore;
+        let store: FontCatalogStore;
 
         beforeEach(async () => {
             fetch.mockResolvedValue(makeResponse(generateMockFonts(10), { total: 30, limit: 10, offset: 0 }));
-            store = new FontStore({ limit: 10 });
+            store = new FontCatalogStore({ limit: 10 });
             await store.refetch();
             flushSync();
         });
@@ -415,7 +415,7 @@ describe('FontStore', () => {
             // Set up a store where all fonts fit in one page (hasMore = false)
             queryClient.clear();
             fetch.mockResolvedValue(makeResponse(generateMockFonts(10), { total: 10, limit: 10, offset: 0 }));
-            store = new FontStore({ limit: 10 });
+            store = new FontCatalogStore({ limit: 10 });
             await store.refetch();
             flushSync();
 
@@ -454,7 +454,7 @@ describe('FontStore', () => {
     describe('getCachedData / setQueryData', () => {
         it('getCachedData returns undefined before any fetch', () => {
             queryClient.clear();
-            const store = new FontStore({ limit: 10 });
+            const store = new FontCatalogStore({ limit: 10 });
             expect(store.getCachedData()).toBeUndefined();
             store.destroy();
         });
@@ -502,7 +502,7 @@ describe('FontStore', () => {
     });
 
     describe('filter shortcut methods', () => {
-        let store: FontStore;
+        let store: FontCatalogStore;
 
         beforeEach(() => {
             store = makeStore();

src/entities/Font/model/store/fontCatalogStore/fontCatalogStore.svelte.ts

@@ -25,7 +25,7 @@ type FontStoreParams = Omit<ProxyFontsParams, 'offset'>;
 
 type FontStoreResult = InfiniteQueryObserverResult<InfiniteData<ProxyFontsResponse, PageParam>, Error>;
 
-export class FontStore {
+export class FontCatalogStore {
     #params = $state<FontStoreParams>({ limit: 50 });
     #result = $state<FontStoreResult>({} as FontStoreResult);
     #observer: InfiniteQueryObserver<
@@ -459,8 +459,8 @@ export class FontStore {
     }
 }
 
-export function createFontStore(params: FontStoreParams = {}): FontStore {
-    return new FontStore(params);
+export function createFontCatalogStore(params: FontStoreParams = {}): FontCatalogStore {
+    return new FontCatalogStore(params);
 }
 
-export const fontStore = new FontStore({ limit: 50 });
+export const fontCatalogStore = new FontCatalogStore({ limit: 50 });

src/entities/Font/model/store/fontLifecycleManager/fontLifecycleManager.svelte.ts

@@ -17,7 +17,7 @@ import { FontBufferCache } from './utils/fontBufferCache/FontBufferCache';
 import { FontEvictionPolicy } from './utils/fontEvictionPolicy/FontEvictionPolicy';
 import { FontLoadQueue } from './utils/fontLoadQueue/FontLoadQueue';
 
-interface AppliedFontsManagerDeps {
+interface FontLifecycleManagerDeps {
     cache?: FontBufferCache;
     eviction?: FontEvictionPolicy;
     queue?: FontLoadQueue;
@@ -46,7 +46,7 @@ interface AppliedFontsManagerDeps {
  *
  * **Browser APIs Used:** `scheduler.yield()`, `isInputPending()`, `requestIdleCallback`, Cache API, Network Information API
  */
-export class AppliedFontsManager {
+export class FontLifecycleManager {
     // Injected collaborators - each handles one concern for better testability
     readonly #cache: FontBufferCache;
     readonly #eviction: FontEvictionPolicy;
@@ -78,7 +78,7 @@ export class AppliedFontsManager {
     // Starts periodic cleanup timer (browser-only).
     constructor(
         { cache = new FontBufferCache(), eviction = new FontEvictionPolicy(), queue = new FontLoadQueue() }:
-            AppliedFontsManagerDeps = {},
+            FontLifecycleManagerDeps = {},
     ) {
         // Inject collaborators - defaults provided for production, fakes for testing
         this.#cache = cache;
@@ -396,4 +396,4 @@ export class AppliedFontsManager {
 /**
  * Singleton instance — use throughout the application for unified font loading state.
  */
-export const appliedFontsManager = new AppliedFontsManager();
+export const fontLifecycleManager = new FontLifecycleManager();

src/entities/Font/model/store/fontLifecycleManager/fontLifecycleManager.test.ts

@@ -1,8 +1,8 @@
 /**
  * @vitest-environment jsdom
  */
-import { AppliedFontsManager } from './appliedFontsStore.svelte';
 import { FontFetchError } from './errors';
+import { FontLifecycleManager } from './fontLifecycleManager.svelte';
 import { FontEvictionPolicy } from './utils/fontEvictionPolicy/FontEvictionPolicy';
 
 class FakeBufferCache {
@@ -32,8 +32,8 @@ const makeConfig = (id: string, overrides: Partial<{ weight: number; isVariable:
     ...overrides,
 });
 
-describe('AppliedFontsManager', () => {
-    let manager: AppliedFontsManager;
+describe('FontLifecycleManager', () => {
+    let manager: FontLifecycleManager;
     let eviction: FontEvictionPolicy;
     let mockFontFaceSet: { add: ReturnType<typeof vi.fn>; delete: ReturnType<typeof vi.fn> };
 
@@ -55,7 +55,7 @@ describe('AppliedFontsManager', () => {
         });
         vi.stubGlobal('FontFace', MockFontFace);
 
-        manager = new AppliedFontsManager({ cache: new FakeBufferCache() as any, eviction });
+        manager = new FontLifecycleManager({ cache: new FakeBufferCache() as any, eviction });
     });
 
     afterEach(() => {
@@ -101,7 +101,7 @@ describe('AppliedFontsManager', () => {
 
         it('skips fonts that have exhausted retries', async () => {
             const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
-            const failManager = new AppliedFontsManager({ cache: new FailingBufferCache() as any, eviction });
+            const failManager = new FontLifecycleManager({ cache: new FailingBufferCache() as any, eviction });
 
             // exhaust all 3 retries
             for (let i = 0; i < 3; i++) {
@@ -160,7 +160,7 @@ describe('AppliedFontsManager', () => {
     describe('Phase 1 — fetch', () => {
         it('sets status to error on fetch failure', async () => {
             const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
-            const failManager = new AppliedFontsManager({ cache: new FailingBufferCache() as any, eviction });
+            const failManager = new FontLifecycleManager({ cache: new FailingBufferCache() as any, eviction });
 
             failManager.touch([makeConfig('broken')]);
             await vi.advanceTimersByTimeAsync(50);
@@ -171,7 +171,7 @@ describe('AppliedFontsManager', () => {
 
         it('logs a console error on fetch failure', async () => {
             const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
-            const failManager = new AppliedFontsManager({ cache: new FailingBufferCache() as any, eviction });
+            const failManager = new FontLifecycleManager({ cache: new FailingBufferCache() as any, eviction });
 
             failManager.touch([makeConfig('broken')]);
             await vi.advanceTimersByTimeAsync(50);
@@ -189,7 +189,7 @@ describe('AppliedFontsManager', () => {
                 evict() {},
                 clear() {},
             };
-            const abortManager = new AppliedFontsManager({ cache: abortingCache as any, eviction });
+            const abortManager = new FontLifecycleManager({ cache: abortingCache as any, eviction });
 
             abortManager.touch([makeConfig('aborted')]);
             await vi.advanceTimersByTimeAsync(50);

src/entities/Font/model/store/index.ts

@@ -1,9 +1,9 @@
-// Applied fonts manager
-export * from './appliedFontsStore/appliedFontsStore.svelte';
+// Font lifecycle manager (browser-side load + cache + eviction)
+export * from './fontLifecycleManager/fontLifecycleManager.svelte';
 
-// Single FontStore
+// Paginated catalog
 export {
-    createFontStore,
-    FontStore,
-    fontStore,
-} from './fontStore/fontStore.svelte';
+    createFontCatalogStore,
+    FontCatalogStore,
+    fontCatalogStore,
+} from './fontCatalogStore/fontCatalogStore.svelte';