auto-claude: subtask-3-2 - Add JSDoc to fontLoader.ts

src/utils/fontLoader.ts

@@ -1,4 +1,13 @@
-// Font loading utility to ensure fonts are loaded before showing content
+/**
+ * Font Loading Utility
+ * Ensures fonts are loaded before showing content to prevent FOUT/FOIT
+ */
+
+/**
+ * Preload fonts asynchronously
+ * Uses the Font Loading API to ensure Inter font is loaded
+ * Falls back to system fonts on error
+ */
 export const preloadFonts = async () => {
   if ('fonts' in document) {
     try {
@@ -12,14 +21,18 @@ export const preloadFonts = async () => {
   }
 };
 
-// Call this function as early as possible
+/**
+ * Initialize font loading process
+ * Should be called as early as possible in the application lifecycle
+ * Adds loading state and fallback timeout to prevent indefinite loading
+ */
 export const initializeFonts = () => {
   // Add loading class immediately
   document.documentElement.classList.add('fonts-loading');
-  
+
   // Start font loading
   preloadFonts();
-  
+
   // Remove loading class after a timeout to prevent indefinite loading state
   setTimeout(() => {
     document.documentElement.classList.remove('fonts-loading');
@@ -27,4 +40,4 @@ export const initializeFonts = () => {
       document.documentElement.classList.add('fonts-fallback');
     }
   }, 3000);
-};
+};