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/widgets/ComparisonView/model/stores/comparisonStore.test.ts

@@ -55,8 +55,8 @@ vi.mock('$entities/Font', async importOriginal => {
     const actual = await importOriginal<typeof import('$entities/Font')>();
     return {
         ...actual,
-        fontStore: { fonts: [] },
-        appliedFontsManager: {
+        fontCatalogStore: { fonts: [] },
+        fontLifecycleManager: {
             touch: vi.fn(),
             pin: vi.fn(),
             unpin: vi.fn(),
@@ -85,8 +85,8 @@ vi.mock('$features/AdjustTypography/model', () => ({
 }));
 
 import {
-    appliedFontsManager,
-    fontStore,
+    fontCatalogStore,
+    fontLifecycleManager,
 } from '$entities/Font';
 import * as proxyFonts from '$entities/Font/api/proxy/proxyFonts';
 import { ComparisonStore } from './comparisonStore.svelte';
@@ -100,7 +100,7 @@ describe('ComparisonStore', () => {
         vi.clearAllMocks();
         mockStorage._value = { fontAId: null, fontBId: null };
         mockStorage._clear.mockClear();
-        (fontStore as any).fonts = [];
+        (fontCatalogStore as any).fonts = [];
 
         // Default: fetchFontsByIds returns empty so tests that don't care don't hang
         vi.spyOn(proxyFonts, 'fetchFontsByIds').mockResolvedValue([]);
@@ -155,7 +155,7 @@ describe('ComparisonStore', () => {
 
     describe('Default Fallbacks', () => {
         it('should update storage with default IDs when storage is empty', async () => {
-            (fontStore as any).fonts = [mockFontA, mockFontB];
+            (fontCatalogStore as any).fonts = [mockFontA, mockFontB];
             vi.spyOn(proxyFonts, 'fetchFontsByIds').mockResolvedValue([mockFontA, mockFontB]);
 
             new ComparisonStore();
@@ -212,12 +212,12 @@ describe('ComparisonStore', () => {
             new ComparisonStore();
 
             await vi.waitFor(() => {
-                expect(appliedFontsManager.pin).toHaveBeenCalledWith(
+                expect(fontLifecycleManager.pin).toHaveBeenCalledWith(
                     mockFontA.id,
                     400,
                     mockFontA.features?.isVariable,
                 );
-                expect(appliedFontsManager.pin).toHaveBeenCalledWith(
+                expect(fontLifecycleManager.pin).toHaveBeenCalledWith(
                     mockFontB.id,
                     400,
                     mockFontB.features?.isVariable,
@@ -238,12 +238,12 @@ describe('ComparisonStore', () => {
             store.fontA = mockFontC;
 
             await vi.waitFor(() => {
-                expect(appliedFontsManager.unpin).toHaveBeenCalledWith(
+                expect(fontLifecycleManager.unpin).toHaveBeenCalledWith(
                     mockFontA.id,
                     400,
                     mockFontA.features?.isVariable,
                 );
-                expect(appliedFontsManager.pin).toHaveBeenCalledWith(
+                expect(fontLifecycleManager.pin).toHaveBeenCalledWith(
                     mockFontC.id,
                     400,
                     mockFontC.features?.isVariable,