update_status() fired aksrt_report_status_changed without the note and
the mail listener hard-coded note => '', so the reply-to-reporter
comment written in the process form never reached the email. Pass the
sanitized note as a 4th action arg, render it via the existing {note}
placeholder, and map the raw status key to its Chinese label in the
email body. Contract test extended accordingly.
kate522
c7a552dfd5