Move JSDoc description to peek() method and remove whitespace in test

Co-authored-by: streamich <9773803+streamich@users.noreply.github.com>

Author: Copilot

src/buffers/Reader.ts

@@ -12,12 +12,14 @@ export class Reader implements IReader, IReaderResettable {
     this.view = new DataView(uint8.buffer, uint8.byteOffset, uint8.length);
   }
 
+  /**
+   * Get current byte value without advancing the cursor.
+   */
   public peek(): number {
     return this.view.getUint8(this.x);
   }
 
   /** 
-   * Get current byte value without advancing the cursor.
    * @deprecated Use peek() instead.
    */
   public peak(): number {

src/buffers/__tests__/peak-peek.spec.ts

@@ -7,7 +7,6 @@ describe('peak() and peek() methods', () => {
     test('peak() returns current byte without advancing cursor', () => {
       const reader = new Reader();
       reader.reset(new Uint8Array([1, 2, 3, 4, 5]));
-      
       expect(reader.x).toBe(0);
       expect(reader.peak()).toBe(1);
       expect(reader.x).toBe(0); // cursor should not advance