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/handler/voice_handler.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"io"
-	"log"
+	"github.com/yourname/cyrene-ai/pkg/logger"
 	"net/http"
 	"strings"
 
@@ -50,7 +50,7 @@ func (h *VoiceHandler) Transcribe(c *gin.Context) {
 
 	resp, err := h.client.Do(proxyReq)
 	if err != nil {
-		log.Printf("[voice] Voice-Service 不可达 (Transcribe): %v", err)
+		logger.Printf("[voice] Voice-Service 不可达 (Transcribe): %v", err)
 		c.JSON(http.StatusBadGateway, gin.H{
 			"error":     "Voice-Service 不可达: " + err.Error(),
 			"errorType": "voice_service_unreachable",
@@ -88,7 +88,7 @@ func (h *VoiceHandler) TTSSynthesize(c *gin.Context) {
 
 	resp, err := h.client.Do(proxyReq)
 	if err != nil {
-		log.Printf("[voice] Voice-Service 不可达 (TTS): %v", err)
+		logger.Printf("[voice] Voice-Service 不可达 (TTS): %v", err)
 		c.JSON(http.StatusBadGateway, gin.H{
 			"error":     "Voice-Service 不可达: " + err.Error(),
 			"errorType": "voice_service_unreachable",
@@ -115,7 +115,7 @@ func (h *VoiceHandler) TTSVoices(c *gin.Context) {
 
 	resp, err := h.client.Get(url)
 	if err != nil {
-		log.Printf("[voice] Voice-Service 不可达 (Voices): %v", err)
+		logger.Printf("[voice] Voice-Service 不可达 (Voices): %v", err)
 		c.JSON(http.StatusBadGateway, gin.H{
 			"error":     "Voice-Service 不可达: " + err.Error(),
 			"errorType": "voice_service_unreachable",
@@ -139,7 +139,7 @@ func (h *VoiceHandler) TTSStatus(c *gin.Context) {
 
 	resp, err := h.client.Get(url)
 	if err != nil {
-		log.Printf("[voice] Voice-Service 不可达 (TTS Status): %v", err)
+		logger.Printf("[voice] Voice-Service 不可达 (TTS Status): %v", err)
 		c.JSON(http.StatusBadGateway, gin.H{
 			"error":     "Voice-Service 不可达: " + err.Error(),
 			"errorType": "voice_service_unreachable",
@@ -162,7 +162,7 @@ func (h *VoiceHandler) VoiceStatus(c *gin.Context) {
 
 	resp, err := h.client.Get(url)
 	if err != nil {
-		log.Printf("[voice] Voice-Service 不可达 (Status): %v", err)
+		logger.Printf("[voice] Voice-Service 不可达 (Status): %v", err)
 		c.JSON(http.StatusBadGateway, gin.H{
 			"error":     "Voice-Service 不可达: " + err.Error(),
 			"errorType": "voice_service_unreachable",