feat: handle webrtc reasoning events

[sr-anam]

Adds an event to handle reasoning responses from thinking/reasoning models via the REASONING_TEXT event sent over the webrtc datachannel.

These are forwarded to the user via a new AnamEvent REASONING_STREAM_EVENT_RECEIVED / REASONING_HISTORY_UPDATED

---

Summary by cubic

Adds WebRTC reasoning text handling and a reasoning stream so clients can display live reasoning and receive final reasoning history.

• New Features
  • Handle DataChannelMessage.REASONING_TEXT in StreamingClient and emit InternalEvent.WEBRTC_REASONING_TEXT_MESSAGE_RECEIVED.
  • Add ReasoningHistoryClient (initialized in AnamClient) to emit REASONING_STREAM_EVENT_RECEIVED and REASONING_HISTORY_UPDATED.
  • Add types and callbacks for WebRtcReasoningTextMessageEvent, ReasoningMessage, and ReasoningStreamEvent.

^{Written for commit ce0f26e. Summary will update on new commits.}

[Copilot]

Pull request overview

This PR adds support for handling reasoning events from thinking/reasoning models by introducing a new REASONING_TEXT event type for WebRTC data channel communication. When reasoning responses are received via the data channel, they are forwarded to users through a new REASONING_TEXT_MESSAGE_RECEIVED event.

• Adds REASONING_TEXT data channel message type
• Creates WebRtcReasoningTextMessageEvent interface to type reasoning event data
• Implements event handling logic to emit reasoning events to users

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/types/streaming/index.ts	Exports the new WebRtcReasoningTextMessageEvent type
src/types/streaming/WebRtcReasoningTextMessageEvent.ts	Defines the interface for reasoning text message events
src/types/streaming/DataChannelMessage.ts	Adds REASONING_TEXT enum value for the new message type
src/types/events/public/EventCallbacks.ts	Adds callback signature for the new reasoning event
src/types/events/public/AnamEvent.ts	Adds REASONING_TEXT_MESSAGE_RECEIVED event enum
src/types/AgentAudioInputStream.ts	Reformats arrow function for consistency
src/modules/StreamingClient.ts	Implements reasoning event handling in the data channel message switch

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[cubic-dev-ai]

No issues found across 7 files

[ao-anam]

[ao-anam]