refactor: improve error handling and response formatting in API

internal/utils/strutils/ansi/ansi.go

@@ -1,6 +1,8 @@
 package ansi
 
-import "regexp"
+import (
+	"regexp"
+)
 
 var ansiRegexp = regexp.MustCompile(`\x1b\[[0-9;]*m`)
 
@@ -43,11 +45,3 @@ func WithANSI(s string, ansi string) string {
 func StripANSI(s string) string {
 	return ansiRegexp.ReplaceAllString(s, "")
 }
-
-var ToHTMLClass = map[string]string{
-	"[91": "log-red",
-	"[92": "log-green",
-	"[93": "log-yellow",
-	"[96": "log-cyan",
-	"[97": "log-white",
-}