refactor: Agent驱动重构，整章写入替代场景拼接

app/agents.go

@@ -18,6 +18,7 @@ func BuildCoordinator(
 ) (*agentcore.Agent, *tools.AskUserTool) {
 	// 共享工具
 	contextTool := tools.NewContextTool(store, refs, cfg.Style)
+	readChapter := tools.NewReadChapterTool(store)
 	askUser := tools.NewAskUserTool()
 
 	// Architect SubAgent 工具
@@ -26,19 +27,20 @@ func BuildCoordinator(
 		tools.NewSaveFoundationTool(store),
 	}
 
-	// Writer SubAgent 工具（V1: +polish_chapter +check_consistency）
+	// Writer SubAgent 工具：读写 + 规划 + 一致性检查 + 提交
 	writerTools := []agentcore.Tool{
 		contextTool,
+		readChapter,
 		tools.NewPlanChapterTool(store),
-		tools.NewWriteSceneTool(store),
-		tools.NewPolishChapterTool(store),
+		tools.NewDraftChapterTool(store),
 		tools.NewCheckConsistencyTool(store),
 		tools.NewCommitChapterTool(store),
 	}
 
-	// Editor SubAgent 工具
+	// Editor SubAgent 工具：读原文 + 审阅 + 摘要
 	editorTools := []agentcore.Tool{
 		contextTool,
+		readChapter,
 		tools.NewSaveReviewTool(store),
 		tools.NewSaveArcSummaryTool(store),
 		tools.NewSaveVolumeSummaryTool(store),
@@ -79,16 +81,16 @@ func BuildCoordinator(
 
 	writer := agentcore.SubAgentConfig{
 		Name:         "writer",
-		Description:  "场景写作者：逐场景完成一章的创作，包含打磨和一致性检查",
+		Description:  "创作者：自主完成一章的构思、写作、自审和提交",
 		Model:        model,
 		SystemPrompt: writerPrompt,
 		Tools:        writerTools,
-		MaxTurns:     25,
+		MaxTurns:     20,
 	}
 
 	editor := agentcore.SubAgentConfig{
 		Name:         "editor",
-		Description:  "全局审阅者：发现跨章结构问题，输出审阅结果",
+		Description:  "审阅者：阅读原文，从结构和审美两个层面发现问题",
 		Model:        model,
 		SystemPrompt: prompts.Editor,
 		Tools:        editorTools,

app/run.go

@@ -283,12 +283,11 @@ func determineRecovery(progress *domain.Progress, runMeta *domain.RunMeta) recov
 
 	if progress.InProgressChapter > 0 {
 		ch := progress.InProgressChapter
-		scenes := len(progress.CompletedScenes)
 		return recoveryResult{
 			PromptText: withGuidance(fmt.Sprintf(
-				"第 %d 章正在进行中，已完成 %d 个场景。请调用 writer 从场景 %d 继续写作。总共需要写 %d 章。",
-				ch, scenes, scenes+1, progress.TotalChapters)),
-			Label: fmt.Sprintf("场景级恢复：第 %d 章已完成 %d 个场景", ch, scenes),
+				"第 %d 章正在进行中，已有部分草稿。请调用 writer 继续完成该章（可用 read_chapter 读取已有草稿）。总共需要写 %d 章。",
+				ch, progress.TotalChapters)),
+			Label: fmt.Sprintf("恢复：第 %d 章进行中", ch),
 		}
 	}
 
@@ -348,17 +347,29 @@ func handleSubAgentDone(coordinator *agentcore.Agent, store *state.Store, emit e
 		log.Printf("[host] 清除 commit 信号失败: %v", err)
 	}
 
-	log.Printf("[host] 章节提交信号：第 %d 章，%d 字，%d 个场景",
-		result.Chapter, result.WordCount, result.SceneCount)
+	log.Printf("[host] 章节提交信号：第 %d 章，%d 字",
+		result.Chapter, result.WordCount)
 	if emit != nil {
 		emit(UIEvent{
 			Time:     time.Now(),
 			Category: "SYSTEM",
-			Summary:  fmt.Sprintf("第 %d 章已提交：%d 字，%d 个场景", result.Chapter, result.WordCount, result.SceneCount),
+			Summary:  fmt.Sprintf("第 %d 章已提交：%d 字", result.Chapter, result.WordCount),
 			Level:    "success",
 		})
 	}
 
+	// outline_feedback 处理：Writer 反馈大纲偏离
+	if result.Feedback != nil && result.Feedback.Deviation != "" {
+		log.Printf("[host] outline_feedback: %s", result.Feedback.Deviation)
+		if emit != nil {
+			emit(UIEvent{Time: time.Now(), Category: "SYSTEM",
+				Summary: "Writer 反馈大纲偏离: " + truncateLog(result.Feedback.Deviation, 60), Level: "info"})
+		}
+		coordinator.FollowUp(agentcore.UserMsg(fmt.Sprintf(
+			"[系统] Writer 在第 %d 章写作中发现大纲偏离。偏离：%s。建议：%s。请评估是否需要调整后续大纲。",
+			result.Chapter, result.Feedback.Deviation, result.Feedback.Suggestion)))
+	}
+
 	// 确定性判断 0：正在重写/打磨流程中
 	progress, _ := store.LoadProgress()
 	if progress != nil && (progress.Flow == domain.FlowRewriting || progress.Flow == domain.FlowPolishing) {

app/runtime.go

@@ -37,7 +37,6 @@ type UISnapshot struct {
 	CompletedCount    int
 	TotalWordCount    int
 	InProgressChapter int
-	CompletedScenes   int
 	PendingRewrites   []int
 	RewriteReason     string
 	PendingSteer      string
@@ -272,7 +271,6 @@ func (rt *Runtime) Snapshot() UISnapshot {
 		snap.CompletedCount = len(progress.CompletedChapters)
 		snap.TotalWordCount = progress.TotalWordCount
 		snap.InProgressChapter = progress.InProgressChapter
-		snap.CompletedScenes = len(progress.CompletedScenes)
 		snap.PendingRewrites = progress.PendingRewrites
 		snap.RewriteReason = progress.RewriteReason
 	}