feat(emotion): A1 情绪系统接线 + refactor: 拆分 channelbridge.go

A1 情绪接线:
- loop 回合边界钩子(TurnEnd/OnTurnEnd/settleTurn, Result.Mood); 每轮一次非每步
- persona/emotion: React(valence五档) + Machine.Move(BFS最短合法路径一步) + Observer(observe/decay/好感度,仅变化才emit); 好感度步长读角色配置(cyrene delta=10, 0..700)
- 落库 Mood(web session_persist.res.Mood + IM channelbridge/persist; user消息不带mood); WS mood事件(BroadcastMood,仅变化); per-persona隔离; 群聊/陌生人只读不写不发
- cmd/cyrene/emotion.go 生产接线 + wire.go 注入 loop.Options.OnTurnEnd
- 22 测试(状态机被loop调用/Mood非空落库/mood帧shape/只变化才发/群聊只读) + 真二进制冒烟
- Docs: api-client v0.32 §3.7 情绪事件 + 开源对照清单(companion 应用对照)
- 诚实: 本机无LLM凭据→未活体验证'模型返回后完整轮次'一环

拆分 channelbridge.go 816→257(纯搬移零逻辑): connect/inbound/outbound/blacklist/helpers.go; A1 的 IM mood 调用点落在新 inbound.go, 故与本提交同批

回滚 6 个 gofmt 顺手格式化文件(capacity_loop_test/flow/source_test/findchannel_test/admin_channels_platform_test/history) 缩 diff, 含 history.go 注释被转弯引号

internal/services/channelbridge/persist.go

@@ -57,14 +57,17 @@ func (b *Bridge) notifyPersisted(msg history.Message) {
 // concrete client that sent the message (design/16 §4.5) — e.g. "weixin-ilink:conf0:wx_uid"
 // for IM. adapterID is the account adapter registration name that received the message
 // (e.g. "kook:3bef..."), so the admin log can query a per-adapter send/receive stream;
-// it is empty for Web-originated messages. It is a no-op when no history store is wired,
-// so the bridge runs unchanged without storage.
-func (b *Bridge) persistToMain(ctx context.Context, role, content, platform, deviceID, adapterID string) {
+// it is empty for Web-originated messages. mood is the persona's mood for that turn
+// (design/01 §2 情绪状态机), carried on the assistant reply only (design/16 §3.3: the
+// assistant message carries mode/mood); a user message and an untracked mood pass "".
+// It is a no-op when no history store is wired, so the bridge runs unchanged without
+// storage.
+func (b *Bridge) persistToMain(ctx context.Context, role, content, mood, platform, deviceID, adapterID string) {
 	if b.history == nil {
 		return
 	}
 	full, err := b.history.AppendFull(ctx, history.Message{
-		SessionID: history.MainSessionID, Role: role, Content: content, Platform: platform, DeviceID: deviceID, AdapterID: adapterID, Mode: modeChat,
+		SessionID: history.MainSessionID, Role: role, Content: content, Mood: mood, Platform: platform, DeviceID: deviceID, AdapterID: adapterID, Mode: modeChat,
 	})
 	if err != nil {
 		b.log.Warn("persist main session", "err", err, "role", role, "platform", platform, "device_id", deviceID, "adapter", adapterID)