#14227: fix(matrix): pass asVoice to audioAsVoice for native voice messages

## Description Fixes voice messages being sent as audio file attachments instead of native voice message bubbles in Matrix clients. ## Root Cause The `sendMedia` adapter in `outbound.ts` was not passing the `asVoice` parameter to `sendMessageMatrix`, preventing the `org.matrix.msc3245.voice` flag from being set in the message content. ## Changes - Added `asVoice` extraction from sendMedia parameters - Passed `audioAsVoice: asVoice` to the send function ## Testing 1. Configure TTS with ElevenLabs and `auto: inbound` 2. Send a voice message or use `message` tool with `asVoice: true` 3. Voice messages should now display as native voice bubbles in Element/FluffyChat ## Related Issues - Fixes #14226 - Related to #11654 (similar issue for Telegram) ## Checklist - [x] Bug fix (non-breaking change) - [x] Single file change - [x] No breaking changes --- **Disclaimer:** This pull request was created by an AI assistant (Neo/Kimi) on behalf of a human user. The code changes were authored by AI based on human direction. <!-- greptile_comment --> <h2>Greptile Overview</h2> <h3>Greptile Summary</h3> Fixes the Matrix outbound adapter to forward the `asVoice` parameter as `audioAsVoice` to `sendMessageMatrix`, enabling native voice message bubbles (via `org.matrix.msc3245.voice`) instead of plain audio file attachments. - Extracted `asVoice` from `sendMedia` destructured params and passed it as `audioAsVoice: asVoice` to the send function - The inbound reply path (`deliverMatrixReplies` in `replies.ts`) already passed `audioAsVoice` correctly; this fix addresses the outbound adapter path used by the generic delivery pipeline and message tool - Note: `ChannelOutboundContext` type does not include `asVoice`, so the value is only available at runtime when callers pass extra properties — this is a pre-existing type gap shared with other channels <h3>Confidence Score: 4/5</h3> - This PR is safe to merge — minimal, well-scoped bug fix with no behavioral risk to non-voice code paths. - Single-file, two-line change that correctly wires up an existing parameter (`audioAsVoice`) that was already supported by `sendMessageMatrix`. The `asVoice` value defaults to `undefined` when not provided, preserving backward compatibility. The only minor concern is that `ChannelOutboundContext` doesn't include `asVoice` in its type definition, but this is a pre-existing gap and doesn't affect runtime correctness. - No files require special attention. <!-- greptile_other_comments_section --> _{(2/5) Greptile learns from your feedback when you react with thumbs up/down!} <!-- /greptile_comment -->