feat(ui): expand request trajectory inspection

packages/client/runtime/src/client/index.ts

@@ -28,7 +28,8 @@ export type {
   EngineStoreHandle, EngineStoreInstance, ObservableSnapshot, SnapshotStore,
 } from './contract/store.ts'
 export type {
-  AssistantBlock, AssistantMessageNode, AssistantTiming, CodeSubCall, ComposerPhase, ContextMessageNode,
+  AssistantBlock, AssistantMessageNode, AssistantProvenanceView, AssistantRequestConfig,
+  AssistantTiming, CodeSubCall, ComposerPhase, ContextMessageNode,
   ConversationContext, ConversationContextOriginKind, ConversationNode, ConversationPromptSnapshot,
   ConversationSnapshot, QueuedMessage, RunningToolCall,
   SteeringMessageNode, ToolResultNode, UnknownSurfaceNode, UserMessageNode,

packages/client/runtime/src/client/sessions/conversation.ts

@@ -60,6 +60,23 @@ export interface AssistantTiming {
   completedTime: number
 }
 
+/** Request configuration recorded in the effective header for one assistant response. */
+export interface AssistantRequestConfig {
+  provider: string
+  model: string
+  thinking?: string
+  reasoningEffort?: string
+  temperature?: number
+  maxTokens?: number
+  stop?: readonly string[]
+}
+
+/** Stable provider/model identity attached to one assistant response. */
+export interface AssistantProvenanceView {
+  provider: string
+  model: string
+}
+
 /** A finalized (or interruption-frozen) assistant message. */
 export interface AssistantMessageNode {
   kind: 'assistant'
@@ -70,6 +87,8 @@ export interface AssistantMessageNode {
   step: number
   blocks: readonly AssistantBlock[]
   usage?: unknown
+  provenance?: AssistantProvenanceView
+  requestConfig?: AssistantRequestConfig
   /** Timing derived from the recorded step/chunk/message event sequence. */
   timing?: AssistantTiming
   /** Frozen partial of an aborted turn (no finalize ever arrives): rendered with a 已停止 marker.
@@ -211,6 +230,8 @@ export type ConversationContextOriginKind = 'compaction' | 'rewind' | 'rewrite'
 
 /** Latest complete model request header in force within one context generation. */
 export interface ConversationPromptSnapshot {
+  /** Provider/model and sampling configuration from the latest effective request header. */
+  config?: AssistantRequestConfig
   /** Rendered system prompt text; empty when the request had no system prompt. */
   system: string
   /** Complete tool catalog sent with the request, including tools that were never called. */

packages/client/runtime/src/client/sessions/fold-adapter.ts

@@ -12,7 +12,7 @@ import {
 } from '@deepseek-ai/dsh-session/surface'
 import type { ToolCallView, ToolEventView, ToolResultView } from '@deepseek-ai/dsh-client-connection/client'
 import type {
-  AssistantTiming, ConversationContext, ConversationContextOriginKind, ConversationNode,
+  AssistantRequestConfig, AssistantTiming, ConversationContext, ConversationContextOriginKind, ConversationNode,
   ConversationPromptSnapshot,
 } from './conversation.ts'
 import { toAssistantBlocks } from './conversation.ts'
@@ -43,6 +43,7 @@ function materializeNode(
   callIndex: ReadonlyMap<string, CallIndexEntry>,
   resultView: ToolResultView | null,
   assistantTiming?: AssistantTiming,
+  requestConfig?: AssistantRequestConfig,
 ): ConversationNode {
   switch (event.type) {
     case 'user/message':
@@ -64,6 +65,11 @@ function materializeNode(
         kind: 'assistant', seq: event.seq, time: event.time,
         turn: event.data.turn, step: event.data.step,
         blocks: toAssistantBlocks(event.data.content), usage: event.data.usage,
+        provenance: {
+          provider: event.data.provenance.provider,
+          model: event.data.provenance.model,
+        },
+        ...(requestConfig === undefined ? {} : { requestConfig }),
         ...(assistantTiming !== undefined ? { timing: assistantTiming } : {}),
       }
     case 'steering/message':
@@ -204,6 +210,7 @@ export class FoldAdapter {
         this.callIdx,
         this.resultViews.get(seq) ?? null,
         event.type === 'assistant/message' ? this.assistantTiming(event) : undefined,
+        event.type === 'assistant/message' ? this.assistantRequestConfig(event) : undefined,
       )
       this.nodeCache.set(seq, node)
       out.push(node)
@@ -280,6 +287,7 @@ export class FoldAdapter {
       this.callIdx,
       this.resultViews.get(seq) ?? null,
       event.type === 'assistant/message' ? this.assistantTiming(event) : undefined,
+      event.type === 'assistant/message' ? this.assistantRequestConfig(event) : undefined,
     )
     this.nodeCache.set(seq, node)
     return node
@@ -312,6 +320,17 @@ export class FoldAdapter {
     return { stepStartTime, firstTokenTime, completedTime: event.time }
   }
 
+  private assistantRequestConfig(
+    event: SessionEvent<'assistant/message'>,
+  ): AssistantRequestConfig | undefined {
+    for (let i = event.seq; i >= this.baseSeq; i--) {
+      const candidate = this.padded[i]
+      if (candidate?.type !== 'request/header') continue
+      return candidate.data.header.config
+    }
+    return undefined
+  }
+
   private indexCall(event: SessionEvent, view?: ToolEventView): void {
     if (event.type === 'tool/result') {
       if (view?.for === 'result') this.resultViews.set(event.seq, view.view)
@@ -336,6 +355,7 @@ export class FoldAdapter {
     }
     if (event.type !== 'request/header') return
     this.activePrompt = {
+      config: event.data.header.config,
       system: event.data.header.system ?? '',
       tools: event.data.header.tools ?? [],
     }