feat(cli): surface progression intermédiaire, activité MCP, flux agent↔agent — #157 (QA verte)

frontend/src/features/tickets/useTicketAssistant.ts

@@ -144,7 +144,7 @@ export function useTicketAssistant(
               text: `⚠️ ${chunk.message}`,
               pending: false,
             };
-          } else {
+          } else if (chunk.kind === "final") {
             // `final`: freeze the turn with the aggregated content.
             next[i] = { role: "assistant", text: chunk.content, pending: false };
           }