Add a minimal, non-breaking hook to WhisperLive that allows external
projects to post-process transcription segments before they are sent
to the client.
Changes:
- ServeClientBase: add segment_post_processor attribute (default None)
- ServeClientBase.send_transcription_to_client: apply post_processor
per-segment with error handling (falls back to original segment)
- TranscriptionServer: add segment_post_processor parameter to run()
and wire it to each client on creation
This enables downstream projects to plug in custom processing
(e.g. formatting, PII redaction, diarization tagging) without
modifying WhisperLive core code.
Aaron Boxer
c028c4b584