More assistant events (#18032)

Release Notes:

- N/A

crates/client/src/telemetry.rs

@@ -16,9 +16,9 @@ use std::io::Write;
 use std::{env, mem, path::PathBuf, sync::Arc, time::Duration};
 use sysinfo::{CpuRefreshKind, Pid, ProcessRefreshKind, RefreshKind, System};
 use telemetry_events::{
-    ActionEvent, AppEvent, AssistantEvent, AssistantKind, CallEvent, CpuEvent, EditEvent,
-    EditorEvent, Event, EventRequestBody, EventWrapper, ExtensionEvent, InlineCompletionEvent,
-    MemoryEvent, ReplEvent, SettingEvent,
+    ActionEvent, AppEvent, AssistantEvent, AssistantKind, AssistantPhase, CallEvent, CpuEvent,
+    EditEvent, EditorEvent, Event, EventRequestBody, EventWrapper, ExtensionEvent,
+    InlineCompletionEvent, MemoryEvent, ReplEvent, SettingEvent,
 };
 use tempfile::NamedTempFile;
 #[cfg(not(debug_assertions))]
@@ -391,6 +391,7 @@ impl Telemetry {
         self: &Arc<Self>,
         conversation_id: Option<String>,
         kind: AssistantKind,
+        phase: AssistantPhase,
         model: String,
         response_latency: Option<Duration>,
         error_message: Option<String>,
@@ -398,6 +399,7 @@ impl Telemetry {
         let event = Event::Assistant(AssistantEvent {
             conversation_id,
             kind,
+            phase,
             model: model.to_string(),
             response_latency,
             error_message,