feat: 升级至 v0.3.7 — 前后端状态同步与错误处理全量修复

核心引擎修复:
- CE-1: 上下文压缩摘要 role 从 system 改为 user，避免被 adapter 过滤
- CE-2: 工具失败时优先使用 error 字段（engine/openai-format/ollama 三处）
- P0-1: DeadLoopError 终止时正确传 error 参数，前端可见 ERROR 事件
- MT-1: 新增 waitForAbort 方法，abortSession 等待 run 结束再返回
- MT-2: TERMINATED 状态到达时标记步骤完成，避免 Trace Viewer 转圈
- MT-3: 压缩边界检测孤立 tool 消息，避免 API 400 错误
- isRetryableError 与 catch 分支统一 toLowerCase

IPC 与主进程修复:
- P0-2: createAdapter 配置缺失返回 null，FALLBACK_ADAPTER 兜底
- P0-3: reloadAdapter 失败返回 success:false 通知前端
- P1-5: 校验失败发 ERROR+DONE 流事件，防止 isStreaming 卡死
- P1-6: configLoaded 标志，配置加载前禁用发送按钮
- P1-7: MCP initialize 移到 agentLoop 后，完成后同步工具
- P2-11: beforeLoad 在 loadURL 前注册 IPC handler
- P2-12: provider 切换竞态保护

前端状态同步修复:
- clearSessions 后同步清空前端会话与消息状态
- clearMemories 通过 memoryVersion 触发 MemoryViewer 重新加载
- ContextMenu 4 个 session 操作补全 IPC 调用与 try/catch
- useConfig 配置保存失败回滚 UI 并提示
- handleToggle 工具切换失败回滚单个工具状态

错误处理全量补全:
- 所有 await window.metona 调用补全 try/catch 与 toast 反馈
- MCP addServer/toggleServer/removeServer 检查返回值
- showItemInFolder 检查返回值（handleOpen/handleOpenInFolder）
- sse-stream/ollama NDJSON 解析失败改为 log.warn
- adapter throwHttpError 带 status 属性供 isRetryableError 判断

electron/harness/adapters/agnes-ai.adapter.ts

@@ -60,8 +60,7 @@ export class AgnesAdapter extends BaseAdapter {
     });
 
     if (!response.ok) {
-      const errorBody = await response.text().catch(() => '');
-      throw new Error(`Agnes AI API error: ${response.status} ${response.statusText} - ${errorBody}`);
+      await this.throwHttpError(response, 'Agnes AI API error');
     }
 
     const data = await response.json() as Record<string, unknown>;
@@ -102,11 +101,12 @@ export class AgnesAdapter extends BaseAdapter {
     });
 
     if (!response.ok || !response.body) {
-      throw new Error(`Agnes AI stream error: ${response.status}`);
+      await this.throwHttpError(response, 'Agnes AI stream error');
     }
 
     yield* parseSSEStream(
-      response.body,
+      // 非空断言：上方 if 已确保 response.body 不为 null
+      response.body!,
       request.meta.requestId,
       request.meta.sessionId,
       request.meta.iteration,

electron/harness/adapters/base-adapter.ts

@@ -111,6 +111,18 @@ export abstract class BaseAdapter implements IMetonaProviderAdapter {
     return this.supportedModels.map((id) => ({ id }));
   }
 
+  /**
+   * P1-4 修复: 构造带 HTTP status 属性的 Error 并抛出
+   * engine.isRetryableError 依赖 error.status 判断是否可重试（429/5xx）
+   */
+  protected async throwHttpError(response: Response, context: string): Promise<never> {
+    let errorBody = '';
+    try { errorBody = await response.text(); } catch { /* body 可能已消费或为 null */ }
+    const error = new Error(`${context}: ${response.status} ${response.statusText}${errorBody ? ` - ${errorBody}` : ''}`);
+    (error as Error & { status: number }).status = response.status;
+    throw error;
+  }
+
   /**
    * 将原生错误映射为 MetonaError
    */

electron/harness/adapters/deepseek.adapter.ts

@@ -65,8 +65,7 @@ export class DeepSeekAdapter extends BaseAdapter {
     });
 
     if (!response.ok) {
-      const errorBody = await response.text().catch(() => '');
-      throw new Error(`DeepSeek API error: ${response.status} ${response.statusText} - ${errorBody}`);
+      await this.throwHttpError(response, 'DeepSeek API error');
     }
 
     const data = await response.json() as Record<string, unknown>;
@@ -107,11 +106,13 @@ export class DeepSeekAdapter extends BaseAdapter {
     });
 
     if (!response.ok || !response.body) {
-      throw new Error(`DeepSeek stream error: ${response.status}`);
+      await this.throwHttpError(response, 'DeepSeek stream error');
     }
 
     yield* parseSSEStream(
-      response.body,
+      // 非空断言：上方 if 已确保 response.body 不为 null
+      // TypeScript 无法通过 await Promise<never> 正确收窄，需显式断言
+      response.body!,
       request.meta.requestId,
       request.meta.sessionId,
       request.meta.iteration,

electron/harness/adapters/mimo.adapter.ts

@@ -71,8 +71,7 @@ export class MimoAdapter extends BaseAdapter {
     });
 
     if (!response.ok) {
-      const errorBody = await response.text().catch(() => '');
-      throw new Error(`MiMo API error: ${response.status} ${response.statusText} - ${errorBody}`);
+      await this.throwHttpError(response, 'MiMo API error');
     }
 
     const data = await response.json() as Record<string, unknown>;
@@ -111,11 +110,12 @@ export class MimoAdapter extends BaseAdapter {
     });
 
     if (!response.ok || !response.body) {
-      throw new Error(`MiMo stream error: ${response.status}`);
+      await this.throwHttpError(response, 'MiMo stream error');
     }
 
     yield* parseSSEStream(
-      response.body,
+      // 非空断言：上方 if 已确保 response.body 不为 null
+      response.body!,
       request.meta.requestId,
       request.meta.sessionId,
       request.meta.iteration,

electron/harness/adapters/ollama.adapter.ts

@@ -61,7 +61,7 @@ export class OllamaAdapter extends BaseAdapter {
     });
 
     if (!response.ok) {
-      throw new Error(`Ollama API error: ${response.status}`);
+      await this.throwHttpError(response, 'Ollama API error');
     }
 
     const data = await response.json() as Record<string, unknown>;
@@ -81,10 +81,11 @@ export class OllamaAdapter extends BaseAdapter {
     });
 
     if (!response.ok || !response.body) {
-      throw new Error(`Ollama stream error: ${response.status}`);
+      await this.throwHttpError(response, 'Ollama stream error');
     }
 
-    const reader = response.body.getReader();
+    // 非空断言：上方 if 已确保 response.body 不为 null
+    const reader = response.body!.getReader();
     const decoder = new TextDecoder();
     let seq = 0;
     let buffer = '';
@@ -183,8 +184,9 @@ export class OllamaAdapter extends BaseAdapter {
             };
             return;
           }
-        } catch {
-          // 跳过解析失败的行
+        } catch (parseErr) {
+          // P2-8 修复: 与 sse-stream.ts 一致，记录解析失败行便于诊断
+          log.warn(`[Ollama] Failed to parse NDJSON line: ${(parseErr as Error).message}`, trimmed.slice(0, 200));
         }
       }
     }
@@ -436,9 +438,12 @@ export class OllamaAdapter extends BaseAdapter {
         // 工具结果
         if (m.role === 'tool' && m.toolResult) {
           msg.tool_call_id = m.toolResult.toolCallId;
-          msg.content = typeof m.toolResult.result === 'string'
-            ? m.toolResult.result
-            : JSON.stringify(m.toolResult.result);
+          // CE-2 修复: 工具失败时 result 为 null，优先用 error 字段作为 content
+          msg.content = m.toolResult.error
+            ? m.toolResult.error
+            : (typeof m.toolResult.result === 'string'
+              ? m.toolResult.result
+              : JSON.stringify(m.toolResult.result));
         }
         // assistant 工具调用（Ollama REST API 要求 arguments 为 JSON 字符串）
         if (m.role === 'assistant' && m.toolCalls?.length) {

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

@@ -67,10 +67,13 @@ export function buildOpenAICompatibleMessages(
       // === 工具执行结果 ===
       if (m.role === 'tool' && m.toolResult) {
         msg.tool_call_id = m.toolResult.toolCallId;
-        msg.content =
-          typeof m.toolResult.result === 'string'
+        // CE-2 修复: 工具失败时 result 为 null，优先用 error 字段作为 content
+        // 否则 LLM 看到 "null" 不知道失败原因，可能重复调用导致死循环
+        msg.content = m.toolResult.error
+          ? m.toolResult.error
+          : (typeof m.toolResult.result === 'string'
             ? m.toolResult.result
-            : JSON.stringify(m.toolResult.result);
+            : JSON.stringify(m.toolResult.result));
       }
 
       return msg;

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

@@ -9,6 +9,7 @@
  */
 
 import { nanoid } from 'nanoid';
+import log from 'electron-log';
 import type { MetonaStreamEvent, MetonaTokenUsage } from '../../types';
 import { MetonaStreamEventType } from '../../types';
 
@@ -198,8 +199,9 @@ export async function* parseSSEStream(
           // L-4 修复: 使用 flushToolCallBuffer 替代重复的遍历代码
           yield* flushToolCallBuffer(toolCallsBuffer, requestId, sessionId, iteration, seqRef);
         }
-      } catch {
-        // 跳过解析失败的行
+      } catch (parseErr) {
+        // P2-8 修复: 不再静默跳过，记录 warning 便于排查 SSE 数据损坏
+        log.warn(`[SSE] Failed to parse stream line: ${(parseErr as Error).message}`, line.slice(0, 200));
       }
     }
   }