fix: 全面修复审计问题并优化系统提示词

**崩溃/挂死修复 (5):**
- 统一 TrayManager.isQuitting 变量，修复 Cmd+Q 无法退出
- useAgentStream 闭包过期快照 → 每次 getState()
- Agnes chatStream 添加 AbortSignal.timeout
- SSE JSON.parse 添加 try-catch 保护
- Orchestrator setTools 污染 → save/restore 模式

**功能修复 (14):**
- 上下文压缩实现 (每5轮 COMPRESSING 状态)
- 修复 requestId 硬编码空串
- ConfigService.set() 保留已有 category
- MemoryManager 新增 working 类型搜索
- PromptInjectionDefender 补全 sanitize()
- Ollama: 补全 dynamicReminders + reasoningContent
- openai-format: 所有 assistant 消息保留 reasoningContent
- SSE: finish_reason 时提前 flush tool_calls
- DeepSeek thinking effort 映射注释
- Ollama done_reason load→stop
- RateLimitHook >= 边界修复
- WorkspaceService isValid 首次启动修复
- sessions:archive IPC handler
- 托盘/窗口图标路径生产环境修复

**系统提示词优化:**
- SOUL.md 存在时不显示兜底身份，原文放最前
- 兜底身份改为中文 (MetonaAI 自身描述)
- 用户文本在前，附件内容在后

**文件上传:**
- 非图片文件不再 base64 编码，保留 JSON 结构
- 用户文本优先于文件内容

**UI 修复:**
- 首页 Logo 路径修复 (public/ + 相对路径)
- TokenUsage contextWindow 动态计算 (Provider 感知)
- 切换 Provider 同步 contextWindow
- 托盘图标始终显示 Logo (状态由右键菜单展示)

src/hooks/useAgentStream.ts

@@ -36,20 +36,21 @@ export function useAgentStream(): void {
         state?: string;
       };
 
-      const store = useAgentStore.getState();
+      // 每次都从 store 读取最新状态（避免闭包捕获过期快照）
+      const getStore = () => useAgentStore.getState();
 
       // 每次收到迭代号时同步更新
-      if (data.iteration != null && data.iteration !== store.currentIteration) {
-        console.log(`[useAgentStream] iteration: ${store.currentIteration} → ${data.iteration} (event: ${data.type})`);
-        store.setCurrentIteration(data.iteration);
+      if (data.iteration != null && data.iteration !== getStore().currentIteration) {
+        console.log(`[useAgentStream] iteration: ${getStore().currentIteration} → ${data.iteration} (event: ${data.type})`);
+        getStore().setCurrentIteration(data.iteration);
       }
 
       switch (data.type) {
         // 思考开始
         case 'thinking_start':
-          store.setAgentStatus('thinking');
-          store.addTraceStep({
-            iteration: data.iteration ?? store.currentIteration + 1,
+          getStore().setAgentStatus('thinking');
+          getStore().addTraceStep({
+            iteration: data.iteration ?? getStore().currentIteration + 1,
             state: 'THINKING',
             startedAt: Date.now(),
           });
@@ -58,16 +59,16 @@ export function useAgentStream(): void {
         // 推理内容增量
         case 'reasoning_delta':
           if (data.delta) {
-            const messages = store.messages;
+            const messages = getStore().messages;
             const lastMsg = messages[messages.length - 1];
             if (lastMsg?.role === 'assistant') {
               // 追加到最后一条 assistant 消息
-              store.updateMessage(lastMsg.id, {
+              getStore().updateMessage(lastMsg.id, {
                 reasoningContent: (lastMsg.reasoningContent ?? '') + data.delta,
               });
             } else {
               // 还没有 assistant 消息，先创建一条（仅含思考内容）
-              store.addMessage({
+              getStore().addMessage({
                 id: `msg_${Date.now()}_assistant`,
                 role: 'assistant',
                 content: '',
@@ -81,15 +82,15 @@ export function useAgentStream(): void {
         // 思考结束
         case 'thinking_end':
           if (data.iteration) {
-            store.updateTraceStep(data.iteration, { completedAt: Date.now() });
+            getStore().updateTraceStep(data.iteration, { completedAt: Date.now() });
           }
           break;
 
         // 文本增量
         case 'text_delta':
           if (data.delta) {
-            store.setStreaming(true);
-            store.updateLastAssistantMessage(data.delta);
+            getStore().setStreaming(true);
+            getStore().updateLastAssistantMessage(data.delta);
           }
           break;
 
@@ -104,17 +105,18 @@ export function useAgentStream(): void {
             };
 
             // 追加到当前 assistant 消息
-            const messages = store.messages;
-            const lastMsg = messages[messages.length - 1];
-            if (lastMsg?.role === 'assistant') {
-              store.updateMessage(lastMsg.id, {
-                toolCalls: [...(lastMsg.toolCalls ?? []), tc],
+            const msgs = getStore().messages;
+            const lastAssistant = msgs[msgs.length - 1];
+            if (lastAssistant?.role === 'assistant') {
+              getStore().updateMessage(lastAssistant.id, {
+                toolCalls: [...(lastAssistant.toolCalls ?? []), tc],
               });
             }
 
-            store.setAgentStatus('executing');
-            store.addTraceStep({
-              iteration: data.iteration ?? store.currentIteration,
+            getStore().setAgentStatus('executing');
+            const curIter = getStore().currentIteration;
+            getStore().addTraceStep({
+              iteration: data.iteration ?? curIter,
               state: 'EXECUTING',
               startedAt: Date.now(),
               toolCalls: [tc],
@@ -125,8 +127,8 @@ export function useAgentStream(): void {
         // 工具执行结果
         case 'tool_result': {
           if (data.toolResult) {
-            const messages = store.messages;
-            const lastMsg = messages[messages.length - 1];
+            const msgs = getStore().messages;
+            const lastMsg = msgs[msgs.length - 1];
             if (lastMsg?.toolCalls) {
               const updatedToolCalls = lastMsg.toolCalls.map((tc) =>
                 tc.id === data.toolResult!.toolCallId
@@ -139,7 +141,7 @@ export function useAgentStream(): void {
                     }
                   : tc,
               );
-              store.updateMessage(lastMsg.id, { toolCalls: updatedToolCalls });
+              getStore().updateMessage(lastMsg.id, { toolCalls: updatedToolCalls });
             }
           }
           break;
@@ -148,7 +150,7 @@ export function useAgentStream(): void {
         // Token 使用统计
         case 'usage':
           if (data.usage) {
-            store.updateTokenUsage({
+            getStore().updateTokenUsage({
               inputTokens: data.usage.inputTokens ?? 0,
               outputTokens: data.usage.outputTokens ?? 0,
               totalTokens: data.usage.totalTokens ?? 0,
@@ -158,17 +160,16 @@ export function useAgentStream(): void {
 
         // 流结束
         case 'done':
-          store.setStreaming(false);
-          store.setAgentStatus('idle');
-          // 保存 trace 数据到数据库
-          store.saveTraceData();
+          getStore().setStreaming(false);
+          getStore().setAgentStatus('idle');
+          getStore().saveTraceData();
           break;
 
         // 错误
         case 'error':
-          store.setStreaming(false);
-          store.setAgentStatus('error');
-          store.addMessage({
+          getStore().setStreaming(false);
+          getStore().setAgentStatus('error');
+          getStore().addMessage({
             id: `msg_${Date.now()}_error`,
             role: 'system',
             content: `错误: ${data.error?.message ?? '未知错误'}`,
@@ -179,8 +180,8 @@ export function useAgentStream(): void {
         // 状态变化
         case 'state_change':
           if (data.state) {
-            store.addTraceStep({
-              iteration: data.iteration ?? store.currentIteration,
+            getStore().addTraceStep({
+              iteration: data.iteration ?? getStore().currentIteration,
               state: data.state,
               startedAt: Date.now(),
             });