style: configure deno fmt to use single quotes

- Add singleQuote: true to deno.json fmt configuration
- Reformat all files with single quotes using deno fmt

ts/logger.ts

@@ -5,7 +5,7 @@
 export class Logger {
   private currentBoxWidth: number | null = null;
   private static instance: Logger;
-  
+
   /** Default width to use when no width is specified */
   private readonly DEFAULT_WIDTH = 60;
 
@@ -66,14 +66,14 @@ export class Logger {
    */
   public logBoxTitle(title: string, width?: number): void {
     this.currentBoxWidth = width || this.DEFAULT_WIDTH;
-    
+
     // Create the title line with appropriate padding
     const paddedTitle = ` ${title} `;
     const remainingSpace = this.currentBoxWidth - 3 - paddedTitle.length;
-    
+
     // Title line: ┌─ Title ───┐
     const titleLine = `┌─${paddedTitle}${'─'.repeat(Math.max(0, remainingSpace))}┐`;
-    
+
     console.log(titleLine);
   }
 
@@ -87,12 +87,12 @@ export class Logger {
       // No current width and no width provided, use default width
       this.logBoxTitle('', this.DEFAULT_WIDTH);
     }
-    
+
     const boxWidth = width || this.currentBoxWidth || this.DEFAULT_WIDTH;
-    
+
     // Calculate the available space for content
     const availableSpace = boxWidth - 2; // Account for left and right borders
-    
+
     if (content.length <= availableSpace - 1) {
       // If content fits with at least one space for the right border stripe
       const padding = availableSpace - content.length - 1;
@@ -109,10 +109,10 @@ export class Logger {
    */
   public logBoxEnd(width?: number): void {
     const boxWidth = width || this.currentBoxWidth || this.DEFAULT_WIDTH;
-    
+
     // Create the bottom border: └────────┘
     console.log(`└${'─'.repeat(boxWidth - 2)}┘`);
-    
+
     // Reset the current box width
     this.currentBoxWidth = null;
   }
@@ -125,11 +125,11 @@ export class Logger {
    */
   public logBox(title: string, lines: string[], width?: number): void {
     this.logBoxTitle(title, width || this.DEFAULT_WIDTH);
-    
+
     for (const line of lines) {
       this.logBoxLine(line);
     }
-    
+
     this.logBoxEnd();
   }
 
@@ -144,4 +144,4 @@ export class Logger {
 }
 
 // Export a singleton instance for easy use
-export const logger = Logger.getInstance();
+export const logger = Logger.getInstance();