feat(voice): 百炼声音复刻create_voice + TTS instruction情绪驱动(主TTS-昔涟复刻音色)

internal/services/gateway/server.go

@@ -390,6 +390,7 @@ func (s *Server) Handler() http.Handler {
 	// fetch synthesized speech, bypassing the 4KB WebSocket frame limit.
 	mux.Handle("POST /api/v1/audio/transcribe", s.auth.Authorize(auth.RoleOwner)(http.HandlerFunc(s.handleTranscribe)))
 	mux.Handle("POST /api/v1/audio/speech", s.auth.Authorize(auth.RoleOwner)(http.HandlerFunc(s.handleSpeech)))
+	mux.Handle("POST /api/v1/audio/voice-clone", s.auth.Authorize(auth.RoleOwner)(http.HandlerFunc(s.handleVoiceClone)))
 
 	// Session/model reads and writes are the owner's private history; owner/admin only
 	// (chat uses the same roles). Session metadata in GET /sessions stays readAuth for