feat(workbench): redesign investigation reports and diagrams

src/features/agent/components/agent-command-panel.tsx

@@ -1283,6 +1283,10 @@ function BackendMessageList({
                 )}
               >
                 <div className="space-y-3">
+                  {message.role === "assistant" && message.taskContext ? <p className="text-xs leading-5 text-[var(--ink-muted)]">
+                    依据：{message.taskContext.execution_generation == null ? "历史资料 · 轮次未记录" : `第 ${message.taskContext.execution_generation} 轮`}
+                    {message.taskContext.report_revision == null ? " · 尚无报告" : ` · 报告第 ${message.taskContext.report_revision} 版`}
+                  </p> : null}
                   {message.role === "assistant" && !qaOnly ? (
                     <AgentMessageProgress
                       progress={message.progress}

src/features/agent/index.ts

@@ -1,4 +1,5 @@
 export { AgentCollapsedRail } from "./components/agent-collapsed-rail";
+export { agentTaskDiscussionContextSchema, agentTaskContextReferenceSchema, type AgentTaskDiscussionContext, type AgentTaskContextReference } from "./task-context";
 export { readExecutionReport, updateExecutionReportProgress, appendExecutionReportText, type AgentExecutionReport } from "./execution-report";
 export { parseExecutionPlan, readExecutionPlanHistory, executionPlanStages, executionStatusLabels, type AgentExecutionPlan } from "./execution-plan";
 export { AgentCommandPanel } from "./components/agent-command-panel";

src/features/agent/task-context.ts

@@ -0,0 +1,21 @@
+import { z } from "zod";
+
+export const agentTaskDiscussionContextSchema = z
+  .object({
+    report_revision: z.number().int().positive().optional(),
+    evidence_id: z.string().min(1).max(128).optional(),
+    gap_id: z.string().min(1).max(128).optional()
+  })
+  .strict();
+
+export type AgentTaskDiscussionContext = z.infer<typeof agentTaskDiscussionContextSchema>;
+
+export const agentTaskContextReferenceSchema = z
+  .object({
+    task_id: z.string().uuid(),
+    execution_generation: z.number().int().positive().nullable(),
+    report_revision: z.number().int().positive().nullable()
+  })
+  .strict();
+
+export type AgentTaskContextReference = z.infer<typeof agentTaskContextReferenceSchema>;

src/features/agent/types.ts

@@ -6,6 +6,7 @@ export type AgentChatMessage = {
   permissions?: AgentPermissionRequest[];
   questions?: AgentQuestionRequest[];
   todos?: AgentTodoUpdate;
+  taskContext?: import("./task-context").AgentTaskContextReference;
 };
 
 export type AgentStreamRenderMessageState = {