feat: Phase 1+2 架构进化 — 连续思考链/主动消息决策/情感状态机/离线自主思考 (86文件)

Phase 1 (基础设施):
- ThinkChain 思考链连续性 + 差异化思考提示词 (persistent)
- AutonomousToolPolicy 工具安全策略 (safe/unsafe/conditional)
- MessageScheduler 自适应消息节奏 (Idle/Available/Busy)
- SessionEnrichmentStore 渐进式上下文丰富 (5层)
- ConversationBus 事件总线 + ResponseCache (dedup)
- pkg/logger 统一日志 + 所有 handler 替换 fmt.Printf
- NPE 守卫/链路优化/数据库表修复/Go workspace

Phase 2 (人格交互):
- EmotionState/EmotionTracker 情感状态机 (5种心情, 情绪衰减)
- ProactiveGuard 主动消息多维决策 (静默时段/紧急度/频率/校验)
- Gateway↔ai-core 在线状态感知链路 (presence notification)
- 离线思考频率控制 + 重连问候 + 离线消息排队

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/gateway/internal/ws/client.go

@@ -2,7 +2,7 @@ package ws
 
 import (
 	"encoding/json"
-	"log"
+	"github.com/yourname/cyrene-ai/pkg/logger"
 	"time"
 
 	"github.com/gorilla/websocket"
@@ -60,7 +60,7 @@ func (c *Client) ReadPump(onMessage func(client *Client, msg ClientMessage)) {
 		_, rawMessage, err := c.Conn.ReadMessage()
 		if err != nil {
 			if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseNormalClosure, websocket.CloseAbnormalClosure) {
-				log.Printf("[WS] 读取错误: user=%s err=%v", c.UserID, err)
+				logger.Printf("[WS] 读取错误: user=%s err=%v", c.UserID, err)
 			}
 			break
 		}
@@ -68,7 +68,7 @@ func (c *Client) ReadPump(onMessage func(client *Client, msg ClientMessage)) {
 		// 解析消息
 		var msg ClientMessage
 		if err := json.Unmarshal(rawMessage, &msg); err != nil {
-			log.Printf("[WS] 消息解析失败: user=%s err=%v", c.UserID, err)
+			logger.Printf("[WS] 消息解析失败: user=%s err=%v", c.UserID, err)
 			continue
 		}
 
@@ -109,7 +109,7 @@ func (c *Client) WritePump() {
 			}
 
 			if err := c.Conn.WriteMessage(websocket.TextMessage, message); err != nil {
-				log.Printf("[WS] 写入错误: user=%s err=%v", c.UserID, err)
+				logger.Printf("[WS] 写入错误: user=%s err=%v", c.UserID, err)
 				return
 			}
 
@@ -134,7 +134,7 @@ func (c *Client) SendMessage(msg ServerMessage) error {
 		return nil
 	default:
 		// 通道满：记录警告并返回错误（避免静默丢弃）
-		log.Printf("[WS] 发送通道已满，丢弃消息: type=%s user=%s", msg.Type, c.UserID)
+		logger.Printf("[WS] 发送通道已满，丢弃消息: type=%s user=%s", msg.Type, c.UserID)
 		return nil
 	}
 }