feat(chat): display token usage and tps in message footers (#1094)

app/src/main/java/com/m57/hermescontrol/data/ws/EventParser.kt

@@ -87,7 +87,7 @@ object EventParser {
             "message.complete" -> {
                 val text = payload?.get("text") as? String ?: ""
                 val reasoning = payload?.get("reasoning") as? String
-                WsEvent.MessageComplete(text, sessionId, reasoning)
+                WsEvent.MessageComplete(text, sessionId, reasoning, rawPayload = payload)
             }
 
             "message.done" -> {

app/src/main/java/com/m57/hermescontrol/data/ws/WsEvent.kt

@@ -61,6 +61,8 @@ sealed class WsEvent {
         val reasoning: String? = null,
         /** Stored session id captured before background disconnect clears the active mapping. */
         val storedSessionId: String? = null,
+        /** Full raw payload map (including usage/avg_tps) emitted with message.complete. */
+        val rawPayload: Map<String, Any?>? = null,
     ) : WsEvent()
 
     data class MessageDone(