fix: preserve complete remote tool details

Managed SSH Runtime events could complete successfully and then fail local conversation persistence when tool details exceeded a second, smaller renderer-to-Main schema limit. Conversation persistence now stores the complete tool details already accepted from the Runtime, so long remote results no longer leave the final assistant message stuck in a streaming state.

Release note: 修复远程项目工具结果较长时会话持久化失败的问题；Runtime 已返回的工具详情现在会完整保存到本地会话。

docs/architecture/remote-host-and-goodbuddy-agent-design.md

@@ -207,6 +207,7 @@ Execute 不经过 Ask 的 bubblewrap profile：
   调度、跨 channel 超车、批发送或第二套拥塞控制。
 - Agent 在把 Main 输入交给 Runtime 前、以及把 Runtime 输出交给 Main 前，先把 ACP frame 写入本机 journal。ACK 只推进 cursor 并裁剪已确认 frame，不表示 channel 已终止。
 - Main 持久化 binding identity 和单调 cursor；保留中的 connection lease 即使处于 offline/reconnecting，也可以先把新 cursor 落盘。重连提交不能覆盖 resume 过程中并发落盘的更新。
+- Runtime 事件进入桌面会话后，Renderer 和 Main 将完整工具详情保存到本地 SQLite，不再对已接受的工具输入、输出、错误或摘要施加额外的会话字段长度限制。
 - 同一 detached Agent 存活时，短暂 SSH 断线依次执行 `controller/resume`、`runtime/resumeAcpChannel` 和 `runtime/replayAcpChannel`，从 Main 已确认的 cursor 后只重放 Agent 到 Main 的已记录输出。重复 frame 会被确认但不会再次交给上层。若上一代连接只留下没有活动请求的 detached binding，完成精确 controller takeover 后会先有界停止并核对遗留 Runtime process，再用新 channel epoch 重新打开同一 binding 并恢复已有 ACP session；其他 controller、未证明 takeover 或仍有活动请求的 binding 仍被拒绝。
 - Main 到 Runtime 的 ACP 输入、模型请求、工具请求和 blob 不自动重放。
 - 无法确认外部 Provider 是否已处理的模型调用保持结果未知，避免重复计费或重复副作用。

src/main/assistant/assistant-database.test.ts

@@ -3299,6 +3299,15 @@ describe('AssistantDatabase', () => {
             createdAt: 1_775_000_000_001,
             state: 'complete' as const,
             status: '已完成',
+            tools: [
+              {
+                callId: 'remote-tool-call',
+                name: '远程工具',
+                state: 'completed' as const,
+                summary: '完整远程工具结果',
+                output: '远程输出'.repeat(10_000)
+              }
+            ],
             contextCompressions: [
               {
                 state: 'completed' as const,
@@ -3350,6 +3359,15 @@ describe('AssistantDatabase', () => {
           content: '生成完成',
           state: 'complete',
           status: '已完成',
+          tools: [
+            {
+              callId: 'remote-tool-call',
+              name: '远程工具',
+              state: 'completed',
+              summary: '完整远程工具结果',
+              output: '远程输出'.repeat(10_000)
+            }
+          ],
           contextCompressions: [
             {
               state: 'completed',

src/main/ipc.test.ts

@@ -3917,7 +3917,16 @@ describe('registerIpcHandlers local conversation persistence', () => {
             role: 'assistant' as const,
             content: '增量内容',
             createdAt: 1,
-            state: 'streaming' as const
+            state: 'streaming' as const,
+            tools: [
+              {
+                callId: 'remote-tool-call',
+                name: '远程工具',
+                state: 'completed' as const,
+                summary: '完整远程工具结果',
+                output: '远程输出'.repeat(10_000)
+              }
+            ]
           }
         ]
       }

src/shared/assistant-contracts.test.ts

@@ -6,6 +6,7 @@ import {
   conversationBranchInputSchema,
   conversationSnapshotSchema,
   isUntouchedBuiltInDefaultProject,
+  localConversationSaveBatchSchema,
   persistedProjectExecutionSpaceSchema,
   projectCreateSchema,
   projectExecutionSpaceSchema,
@@ -203,3 +204,42 @@ describe('conversation branch contracts', () => {
     ).toBe(true)
   })
 })
+
+describe('conversation persistence contracts', () => {
+  it('preserves complete tool details without persistence length limits', () => {
+    const input = 'input'.repeat(10_000)
+    const output = 'output'.repeat(20_000)
+    const error = 'error'.repeat(10_000)
+    const batch = [
+      {
+        header: {
+          id: '00000000-0000-4000-8000-000000000301',
+          title: '远程工具会话',
+          updatedAt: 1
+        },
+        messages: [
+          {
+            id: '00000000-0000-4000-8000-000000000302',
+            role: 'assistant',
+            content: '',
+            createdAt: 1,
+            state: 'complete',
+            tools: [
+              {
+                callId: 'remote-tool-call',
+                name: '远程工具',
+                state: 'completed',
+                summary: '完整远程工具结果',
+                input,
+                output,
+                error
+              }
+            ]
+          }
+        ]
+      }
+    ]
+
+    expect(localConversationSaveBatchSchema.parse(batch)).toEqual(batch)
+  })
+})

src/shared/assistant-contracts.ts

@@ -133,8 +133,8 @@ export type ConversationQueueItem = z.infer<
 
 export const conversationToolActivitySchema = z
   .object({
-    callId: z.string().max(256).optional(),
-    name: z.string().max(200),
+    callId: z.string().optional(),
+    name: z.string(),
     state: z.enum([
       'pending',
       'running',
@@ -144,10 +144,10 @@ export const conversationToolActivitySchema = z
       'cancelled',
       'interrupted'
     ]),
-    summary: z.string().max(2_000),
-    input: z.string().max(4_000).optional(),
-    output: z.string().max(16_000).optional(),
-    error: z.string().max(2_000).optional()
+    summary: z.string(),
+    input: z.string().optional(),
+    output: z.string().optional(),
+    error: z.string().optional()
   })
   .strict()