fix: preserve remote task success after recoverable tool errors

Align remote ACP tool recovery with local runtime behavior when the model responds after a tool failure and completes normally. Preserve original errors and derive recovery state from committed remote events so reconnecting safely replays partial terminal events.

Validation: 461 focused tests, typecheck, lint, and shared Linux Host recovery scenarios passed. Full-suite validation has two pre-existing heartbeat migration fixture failures involving the pinned column.

Release note: 修复远端 Agent 在读取等工具失败后已正常回复，任务仍被误判为失败的问题，并修复断线重连时的工具状态恢复。

src/main/ipc.ts

@@ -1919,17 +1919,24 @@ export function registerIpcHandlers(
     const recoveredAssistantMessage = conversation.messages.find(
       (message) => message.id === task.currentAssistantMessageId
     )
+    const activityStates = assistantDatabase.getRemoteTaskActivityStates(task.taskId)
     const recoveredTools =
       recoveredAssistantMessage?.tools?.filter(
         (tool): tool is typeof tool & { callId: string } =>
           Boolean(tool.callId)
-      ) ?? []
+      ).map(tool => ({
+        ...tool,
+        state: activityStates.tools.get(tool.callId) ?? tool.state
+      })) ?? []
     const recoveredSubagents =
       recoveredAssistantMessage?.subagents?.filter(
         (subagent) =>
           subagent.routingMode === 'native' &&
           subagent.runtimeCallId
-      ) ?? []
+      ).map(subagent => ({
+        ...subagent,
+        ...activityStates.subagents.get(subagent.childTaskId)
+      })) ?? []
     const toolStates = new Map(
       recoveredTools.map((tool) => [tool.callId, tool])
     )
@@ -1982,6 +1989,8 @@ export function registerIpcHandlers(
         remoteSemanticAfterSequence: highestCommitted,
         remoteRecoveryOnly: true,
         remoteRecoveredTools: recoveredTools,
+        remoteHasResponseTextAfterToolFailure:
+          assistantDatabase.hasRemoteResponseTextAfterToolFailure(task.taskId),
         remoteRecoveredSubagents: recoveredSubagents
       }
       let recoveryMetricSettings: