feat: add new emojis & terminus

types.go

@@ -58,9 +58,9 @@ func (resp *APIResponse) String() string {
 	return strings.TrimSpace(sb.String())
 }
 
-// Terminus 终止符, 一个全角空格
+// Terminus 终止符, 映射到 EOA
 type Terminus struct{}
 
 func (Terminus) String() string {
-	return "　"
+	return `{"action":"` + EOA + `"}`
 }