fix: Agent 迭代数从未更新，始终显示 0/N

src/hooks/useAgentStream.ts

@@ -38,6 +38,11 @@ export function useAgentStream(): void {
 
       const store = useAgentStore.getState();
 
+      // 每次收到迭代号时同步更新
+      if (data.iteration != null) {
+        store.setCurrentIteration(data.iteration);
+      }
+
       switch (data.type) {
         // 思考开始
         case 'thinking_start':

src/stores/agent-store.ts

@@ -105,6 +105,7 @@ interface AgentState {
   updateTokenUsage: (usage: Partial<TokenUsage>) => void;
   setProvider: (provider: string, model: string) => void;
   setMaxIterations: (max: number) => void;
+  setCurrentIteration: (n: number) => void;
   saveTraceData: () => void;
   clearMessages: () => void;
   abort: () => void;
@@ -305,6 +306,8 @@ export const useAgentStore = create<AgentState>((set, get) => ({
 
   setMaxIterations: (max) => set({ maxIterations: max }),
 
+  setCurrentIteration: (currentIteration) => set({ currentIteration }),
+
   saveTraceData: () => {
     const { currentSessionId, traceSteps, tokenUsage } = get();
     if (currentSessionId && window.metona?.sessions?.saveTrace) {