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.svelte.ts

@@ -16,8 +16,8 @@
 import {
     type FontLoadRequestConfig,
     type UnifiedFont,
-    appliedFontsManager,
-    fontStore,
+    fontCatalogStore,
+    fontLifecycleManager,
     getFontUrl,
 } from '$entities/Font';
 import { typographySettingsStore } from '$features/AdjustTypography/model';
@@ -140,7 +140,7 @@ export class ComparisonStore {
                 });
 
                 if (configs.length > 0) {
-                    appliedFontsManager.touch(configs);
+                    fontLifecycleManager.touch(configs);
                     this.#checkFontsLoaded();
                 }
             });
@@ -151,7 +151,7 @@ export class ComparisonStore {
                     return;
                 }
 
-                const fonts = fontStore.fonts;
+                const fonts = fontCatalogStore.fonts;
                 if (fonts.length >= 2) {
                     untrack(() => {
                         const id1 = fonts[0].id;
@@ -168,17 +168,17 @@ export class ComparisonStore {
                 const fb = this.#fontB;
                 const w = typographySettingsStore.weight;
                 if (fa) {
-                    appliedFontsManager.pin(fa.id, w, fa.features?.isVariable);
+                    fontLifecycleManager.pin(fa.id, w, fa.features?.isVariable);
                 }
                 if (fb) {
-                    appliedFontsManager.pin(fb.id, w, fb.features?.isVariable);
+                    fontLifecycleManager.pin(fb.id, w, fb.features?.isVariable);
                 }
                 return () => {
                     if (fa) {
-                        appliedFontsManager.unpin(fa.id, w, fa.features?.isVariable);
+                        fontLifecycleManager.unpin(fa.id, w, fa.features?.isVariable);
                     }
                     if (fb) {
-                        appliedFontsManager.unpin(fb.id, w, fb.features?.isVariable);
+                        fontLifecycleManager.unpin(fb.id, w, fb.features?.isVariable);
                     }
                 };
             });

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,

src/widgets/ComparisonView/ui/FontList/FontList.svelte

@@ -9,8 +9,8 @@ import {
     FontVirtualList,
     type UnifiedFont,
     VIRTUAL_INDEX_NOT_LOADED,
-    appliedFontsManager,
-    fontStore,
+    fontCatalogStore,
+    fontLifecycleManager,
 } from '$entities/Font';
 import { getSkeletonWidth } from '$shared/lib/utils';
 import {
@@ -36,7 +36,7 @@ function getVirtualIndex(fontId: string | undefined): number {
     if (!fontId) {
         return -1;
     }
-    const idx = fontStore.fonts.findIndex(f => f.id === fontId);
+    const idx = fontCatalogStore.fonts.findIndex(f => f.id === fontId);
     if (idx === -1) {
         return VIRTUAL_INDEX_NOT_LOADED;
     }
@@ -77,11 +77,11 @@ function handleSelect(font: UnifiedFont) {
 /**
  * Returns true once the font file is loaded (or errored) and safe to render.
  * Called inside the template — Svelte 5 tracks the $state reads inside
- * appliedFontsManager.getFontStatus(), so each row re-renders reactively
+ * fontLifecycleManager.getFontStatus(), so each row re-renders reactively
  * when its file arrives.
  */
 function isFontReady(font: UnifiedFont): boolean {
-    const status = appliedFontsManager.getFontStatus(
+    const status = fontLifecycleManager.getFontStatus(
         font.id,
         DEFAULT_FONT_WEIGHT,
         font.features?.isVariable,

src/widgets/ComparisonView/ui/Search/Search.svelte

@@ -2,7 +2,7 @@
     Component: Search
     Typeface search input for the comparison view.
     Writes through appliedFilterStore; the global bridge in $features/FilterAndSortFonts
-    propagates the value into fontStore.
+    propagates the value into fontCatalogStore.
 -->
 <script lang="ts">
 import { appliedFilterStore } from '$features/FilterAndSortFonts';

src/widgets/SampleList/ui/SampleList/SampleList.svelte

@@ -7,9 +7,9 @@
 <script lang="ts">
 import {
     FontVirtualList,
-    appliedFontsManager,
     createFontRowSizeResolver,
-    fontStore,
+    fontCatalogStore,
+    fontLifecycleManager,
 } from '$entities/Font';
 import {
     TypographyMenu,
@@ -57,17 +57,17 @@ const checkPosition = throttle(() => {
 }, 100);
 
 // Resolver recreated when typography values change. The returned closure reads
-// appliedFontsManager.statuses (a SvelteMap) on every call, so any font status
+// fontLifecycleManager.statuses (a SvelteMap) on every call, so any font status
 // change triggers a full offsets recompute in createVirtualizer — no DOM snap.
 const fontRowHeight = $derived.by(() =>
     createFontRowSizeResolver({
-        getFonts: () => fontStore.fonts,
+        getFonts: () => fontCatalogStore.fonts,
         getWeight: () => typographySettingsStore.weight,
         getPreviewText: () => text,
         getContainerWidth: () => containerWidth,
         getFontSizePx: () => typographySettingsStore.renderedSize,
         getLineHeightPx: () => typographySettingsStore.height * typographySettingsStore.renderedSize,
-        getStatus: key => appliedFontsManager.statuses.get(key),
+        getStatus: key => fontLifecycleManager.statuses.get(key),
         contentHorizontalPadding: SAMPLER_CONTENT_PADDING_X,
         chromeHeight: SAMPLER_CHROME_HEIGHT,
         fallbackHeight: SAMPLER_FALLBACK_HEIGHT,

src/widgets/SampleList/ui/SampleListSection/SampleListSection.svelte

@@ -4,7 +4,7 @@
 -->
 <script lang="ts">
 import { NavigationWrapper } from '$entities/Breadcrumb';
-import { fontStore } from '$entities/Font';
+import { fontCatalogStore } from '$entities/Font';
 import type { ResponsiveManager } from '$shared/lib';
 import { cn } from '$shared/lib';
 import {
@@ -36,7 +36,7 @@ const responsive = getContext<ResponsiveManager>('responsive');
             id="sample_set"
             title="Sample Set"
             headerTitle="visual_output"
-            headerSubtitle="items_total: {fontStore.pagination.total ?? 0}"
+            headerSubtitle="items_total: {fontCatalogStore.pagination.total ?? 0}"
             headerAction={registerAction}
         >
             {#snippet headerContent()}