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)

electron/harness/adapters/shared/openai-format.ts

@@ -40,14 +40,17 @@ export function buildOpenAICompatibleMessages(
     .map((m) => {
       const msg: Record<string, unknown> = { role: m.role, content: m.content };
 
-      // === Assistant 工具调用历史 ===
-      if (m.role === 'assistant' && m.toolCalls?.length) {
-        msg.tool_calls = m.toolCalls.map((tc) => ({
-          id: tc.id,
-          type: 'function',
-          function: { name: tc.name, arguments: JSON.stringify(tc.args) },
-        }));
-        // 推理内容必须带回上下文（否则 LLM 丢失思考链）
+      // === Assistant 消息 ===
+      if (m.role === 'assistant') {
+        // 工具调用历史
+        if (m.toolCalls?.length) {
+          msg.tool_calls = m.toolCalls.map((tc) => ({
+            id: tc.id,
+            type: 'function',
+            function: { name: tc.name, arguments: JSON.stringify(tc.args) },
+          }));
+        }
+        // 推理内容（无论是否有工具调用，都保留 reasoning_content）
         if (m.reasoningContent) {
           msg.reasoning_content = m.reasoningContent;
         }

electron/harness/adapters/shared/sse-stream.ts

@@ -142,7 +142,7 @@ export async function* parseSSEStream(
           }
         }
 
-        // Token 使用统计
+        // Token 使用统计 / finish_reason
         if (chunk.usage) {
           const usage: MetonaTokenUsage = {
             inputTokens: chunk.usage.prompt_tokens ?? 0,
@@ -163,6 +163,33 @@ export async function* parseSSEStream(
             usage,
           };
         }
+
+        // 非 [DONE] 但 finish_reason 为 tool_calls 时提前 flush 缓冲区
+        const finishReason = chunk.choices?.[0]?.finish_reason as string | undefined;
+        if (finishReason === 'tool_calls' || finishReason === 'stop') {
+          for (const [index, buf] of toolCallsBuffer) {
+            try {
+              yield {
+                type: MetonaStreamEventType.TOOL_CALL_COMPLETE,
+                requestId,
+                sessionId,
+                iteration,
+                seq: seq++,
+                timestamp: Date.now(),
+                toolCall: {
+                  id: `tc_${nanoid(8)}`,
+                  name: buf.name,
+                  args: buf.argsBuffer ? JSON.parse(buf.argsBuffer) : {},
+                  iteration,
+                  timestamp: Date.now(),
+                },
+              };
+            } catch {
+              // JSON 解析失败，跳过
+            }
+          }
+          toolCallsBuffer.clear();
+        }
       } catch {
         // 跳过解析失败的行
       }
@@ -195,10 +222,16 @@ export function parseOpenAICompatibleResponse(
     reasoningContent: message?.reasoning_content as string | undefined,
     toolCalls: rawToolCalls?.map((tc) => {
       const fn = tc.function as Record<string, unknown>;
+      let args: Record<string, unknown> = {};
+      try {
+        args = JSON.parse(fn.arguments as string);
+      } catch {
+        args = {};
+      }
       return {
         id: tc.id as string,
         name: fn.name as string,
-        args: JSON.parse(fn.arguments as string),
+        args,
         iteration: 0,
         timestamp: Date.now(),
       };