The #agent-hub / zulip-health stream post in notify() encoded content with
python quote(str()) (always empty), so every stream alert posted empty
content and Zulip rejected it silently behind '|| true'. The merged body
also used backslash-escaped ampersands inside double quotes, which curl
transmits literally (type=stream\ -> Zulip 400 'Invalid type').
Stream post now percent-encodes the real message text by piping it through
the encoder (locale-proof: quote_from_bytes on stdin.buffer), uses plain &
separators, and on failure appends one WARN line to the monitor log with
the curl exit status instead of silently swallowing it. Delivery failure
stays non-fatal and unretried. DM path, probes, alive rule, exit codes and
log format unchanged.
root
947e8b24e0