feat: 实现 LLM 文言文摘要生成，优化 Session 创建逻辑

cmd/hxclaw/internal/config.go

@@ -68,6 +68,8 @@ type MemoryConfig struct {
 	AutoSession bool `yaml:"auto_session"`
 	// AutoExport 退出时自动导出
 	AutoExport bool `yaml:"auto_export"`
+	// SummaryTimeout 摘要生成超时时间（秒）
+	SummaryTimeout int `yaml:"summary_timeout"`
 	// Vector 向量服务配置
 	Vector VectorConfig `yaml:"vector"`
 	// Recall 检索配置
@@ -121,10 +123,11 @@ var (
 			Auto:    true,
 		},
 Memory: MemoryConfig{
-			Enabled:      true,
-			DBPath:       "",
-			AutoSession:  true,
-			AutoExport:   true,
+			Enabled:        true,
+			DBPath:         "",
+			AutoSession:    true,
+			AutoExport:    true,
+			SummaryTimeout: 20,
 			Vector: VectorConfig{
 				APIKey:           "",
 				BaseURL:          "https://api.siliconflow.cn/v1",
@@ -222,6 +225,7 @@ memory:
   enabled: true
   auto_session: true
   auto_export: true
+  summary_timeout: 30
   vector:
     api_key: ""
     base_url: "https://api.siliconflow.cn/v1"
@@ -302,6 +306,9 @@ func mergeConfig(userCfg, projCfg *Config) *Config {
 		if projCfg.Memory.AutoExport {
 			result.Memory.AutoExport = projCfg.Memory.AutoExport
 		}
+		if projCfg.Memory.SummaryTimeout > 0 {
+			result.Memory.SummaryTimeout = projCfg.Memory.SummaryTimeout
+		}
 		if projCfg.Memory.Vector.APIKey != "" {
 			result.Memory.Vector.APIKey = projCfg.Memory.Vector.APIKey
 		}

cmd/hxclaw/internal/memory/db.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/hxclaw/hxclaw/cmd/hxclaw/internal"
+	"github.com/sipeed/picoclaw/pkg/agent"
 
 	_ "github.com/tursodatabase/libsql-client-go/libsql"
 )
@@ -18,8 +19,9 @@ type DB struct {
 }
 
 var (
-	db  *DB
-	cfg *DBConfig
+	db            *DB
+	cfg           *DBConfig
+	summaryAgent  *agent.AgentLoop
 )
 
 type DBConfig struct {
@@ -43,7 +45,9 @@ func GetDefaultDBPath() string {
 	return getDefaultDBPath()
 }
 
-func Init(opts ...DBSOption) error {
+func Init(agentLoop *agent.AgentLoop, opts ...DBSOption) error {
+	summaryAgent = agentLoop
+
 	memoryCfg := internal.GetProjectConfig().Memory
 
 	cfg = &DBConfig{

cmd/hxclaw/internal/memory/save.go

@@ -1,6 +1,7 @@
 package memory
 
 import (
+	"context"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -14,6 +15,56 @@ var lastContext string
 
 var ErrNeedNewSession = fmt.Errorf("需要创建新会话")
 
+func generateChatSummary(userInput, aiReply string) string {
+	if summaryAgent == nil {
+		return GenerateSummary(userInput, aiReply)
+	}
+
+	memoryCfg := internal.GetProjectConfig().Memory
+	timeout := time.Duration(memoryCfg.SummaryTimeout) * time.Second
+	if timeout <= 0 {
+		timeout = 30 * time.Second
+	}
+
+	prompt := fmt.Sprintf(`用极简文言文概括对话，一句话，只包含最关键信息（如人名、地点、事件、核心结论）：
+问：%s
+答：%s`, userInput, aiReply)
+
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+
+	resp, err := summaryAgent.ProcessDirect(ctx, prompt, "summary:chat")
+	if err != nil {
+		return GenerateSummary(userInput, aiReply)
+	}
+	return strings.TrimSpace(resp)
+}
+
+func generateSessionSummary(oldSummary, userInput, aiReply string) string {
+	if summaryAgent == nil {
+		return GenerateSummary(oldSummary, oldSummary+"\n"+aiReply)
+	}
+
+	memoryCfg := internal.GetProjectConfig().Memory
+	timeout := time.Duration(memoryCfg.SummaryTimeout) * time.Second
+	if timeout <= 0 {
+		timeout = 30 * time.Second
+	}
+
+	prompt := fmt.Sprintf(`精简整合以下历史，提取关键信息，去除冗余描述，保留核心要点：
+历史：%s
+新对话：问%s 答%s`, oldSummary, userInput, aiReply)
+
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+
+	resp, err := summaryAgent.ProcessDirect(ctx, prompt, "summary:session")
+	if err != nil {
+		return GenerateSummary(oldSummary, oldSummary+"\n"+aiReply)
+	}
+	return strings.TrimSpace(resp)
+}
+
 func GetContextPrompt(userInput string) string {
 	db := GetDB()
 	if db == nil {
@@ -227,8 +278,16 @@ func SaveChat(userInput, aiReply string, useSessionSummary bool) (int, error) {
 
 	// 获取或创建 Session
 	session := currentSession
+	if session == nil && memoryCfg.AutoSession {
+		// 自动创建 session
+		newSession, err := CreateNewSession()
+		if err != nil {
+			return 0, fmt.Errorf("自动创建会话失败: %v", err)
+		}
+		session = newSession
+	}
+
 	if session == nil {
-		// 如果没有 session，返回错误让用户创建
 		return 0, ErrNeedNewSession
 	}
 
@@ -243,7 +302,7 @@ func SaveChat(userInput, aiReply string, useSessionSummary bool) (int, error) {
 
 	// 添加 AI 回复
 	chat.AddAIReply(aiReply)
-	chat.Summary = GenerateSummary(userInput, aiReply)
+	chat.Summary = generateChatSummary(userInput, aiReply)
 	chat.UpdatedAt = time.Now().Unix()
 
 	// 生成并保存向量
@@ -261,7 +320,7 @@ func SaveChat(userInput, aiReply string, useSessionSummary bool) (int, error) {
 
 	// 只有普通对话才更新 session summary，recall 查询保持原 summary
 	if useSessionSummary {
-		session.Summary = GenerateSummary("", session.Summary+"\n"+aiReply)
+		session.Summary = generateSessionSummary(session.Summary, userInput, aiReply)
 	}
 	session.UpdatedAt = time.Now().Unix()
 
@@ -276,7 +335,11 @@ func SaveChat(userInput, aiReply string, useSessionSummary bool) (int, error) {
 
 	// 恢复原始 session summary（避免 recall 结果污染）
 	session.Summary = originalSummary
-	currentSession = session
+
+	// 首次自动创建后赋值 currentSession
+	if currentSession == nil {
+		currentSession = session
+	}
 
 	return len(session.ChatIDs), nil
 }