Merge branch 'claude/rate-limit-behavior-474ecf'

Strip only a trailing numeric suffix from blog folder names, fixing
zomb-eh_10 importing as blog 'zomb-eh0'.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

URLNotesGrabberCORE/Program.cs

@@ -582,16 +582,11 @@ namespace URLNotesGrabberCORE
 
         protected static string NormalizeBlogFolderName(string folderName)
         {
-            return folderName
-                .Replace("_1", "")
-                .Replace("_2", "")
-                .Replace("_3", "")
-                .Replace("_4", "")
-                .Replace("_5", "")
-                .Replace("_6", "")
-                .Replace("_7", "")
-                .Replace("_8", "")
-                .Replace("_9", "");
+            // Archive tools suffix duplicate blog folders with _1, _2, ... _10 and beyond. Strip only a
+            // trailing numeric suffix: unanchored substring removal ate the "_1" inside "_10" and left the
+            // "0" welded to the name (zomb-eh_10 -> zomb-eh0), and mangled any blog whose real name
+            // contains "_1". A blog name is never a prefix of itself plus "_<digits>", so this is safe.
+            return System.Text.RegularExpressions.Regex.Replace(folderName, @"_\d+$", "");
         }
 
         static async Task FetchAndStoreReplyText(string blogName, long postID, long timestamp)