Root-cause fixes for 'banyak miss & terpotong' in the voice->recording flow:
- subscribe BEFORE collecting user metadata. receiver.speaking 'start' fires
on the FIRST opus packet, and onUdpMessage forwards frames to the
subscription only when one exists — every frame during the old
await collectUserMetadata (a Discord REST roundtrip on cache miss) was
dropped, cutting off the start of every burst. Now subscribe synchronously
(guard first, no await in between), then fetch metadata in the background
and discard the burst if the speaker turns out to be a bot.
- one segment per burst: drop the fixed 5s RECORDING_SEGMENT_MS rotation on
the OGG path, which split continuous speech mid-word/sentence. Only the
web-PCM decoder still rotates (bounds memory).
- finalize only once the underlying file has flushed to disk (wait on the
write stream 'finish'), so upload/transcode reads a complete file.
- raise AfterSilence 3000->4000ms so natural pauses (thinking, interruptions)
don't split one utterance into several recordings.
- lower the 'too short to keep' threshold 1000->300ms so brief replies
("ya", "siap") are kept instead of dropped.
All typecheck / biome(src/) / vitest (164) green.
asepharyana
e3016a858a