Fix regex for numbers to support negative numbers

processor/regex.go

@@ -91,10 +91,10 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
 		if len(parts) != 3 {
 			return match
 		}
-		replacement := `\d*\.?\d+`
+		replacement := `-?\d*\.?\d+`
 		return parts[1] + replacement
 	})
-	pattern = strings.ReplaceAll(pattern, "!num", `"?(\d*\.?\d+)"?`)
+	pattern = strings.ReplaceAll(pattern, "!num", `"?(-?\d*\.?\d+)"?`)
 	pattern = strings.ReplaceAll(pattern, "!any", `.*?`)
 	repPattern := regexp.MustCompile(`!rep\(([^,]+),\s*(\d+)\)`)
 	// !rep(pattern, count) repeats the pattern n times