chore(codebase): full cleanup pass

backend/Infrastructure/YouTube/YouTubeUrlHelper.cs

@@ -13,52 +13,62 @@ public static class YouTubeUrlHelper
         RegexOptions.Compiled);
 
     /// <summary>
-    /// Extracts the video ID from a YouTube URL or returns the input if it's already a video ID.
+    ///     Extracts the video ID from a YouTube URL or returns the input if it's already a video ID.
     /// </summary>
     /// <param name="input">The YouTube URL or video ID</param>
     /// <returns>The extracted video ID or null if invalid</returns>
     public static string? ExtractVideoId(string? input)
     {
         if (string.IsNullOrWhiteSpace(input))
+        {
             return null;
+        }
 
         // If it's already a valid video ID, return it
         if (IsValidVideoId(input))
+        {
             return input;
+        }
 
         // Try to extract video ID from URL
-        var match = VideoIdRegex.Match(input);
+        Match match = VideoIdRegex.Match(input);
         return match.Success ? match.Groups[1].Value : null;
     }
 
     /// <summary>
-    /// Validates if the input is a valid YouTube video ID.
+    ///     Validates if the input is a valid YouTube video ID.
     /// </summary>
     /// <param name="input">The video ID to validate</param>
     /// <returns>True if the input is a valid video ID</returns>
     public static bool IsValidVideoId(string? input)
     {
         if (string.IsNullOrWhiteSpace(input))
+        {
             return false;
+        }
 
         return ShortUrlRegex.IsMatch(input);
     }
 
     /// <summary>
-    /// Validates if the input is a valid YouTube URL or video ID.
+    ///     Validates if the input is a valid YouTube URL or video ID.
     /// </summary>
     /// <param name="input">The URL or video ID to validate</param>
     /// <returns>True if the input is a valid YouTube URL or video ID</returns>
     public static bool IsValidYouTubeUrlOrId(string? input)
     {
         if (string.IsNullOrWhiteSpace(input))
+        {
             return false;
+        }
 
         // Check if it's a valid video ID
         if (IsValidVideoId(input))
+        {
             return true;
+        }
 
         // Check if it's a valid YouTube URL
         return VideoIdRegex.IsMatch(input);
     }
-} 
+}