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/runtime/loop/run.go

@@ -21,6 +21,10 @@ import (
 // invocation), and after each step the memory Extractor runs with errors logged
 // rather than fatal.
 //
+// When a turn settles with a Result, the OnTurnEnd hook is called once for that
+// turn (never per step) and its mood label is recorded on Result.Mood, so the
+// layers around the loop can advance persona state and tag the persisted reply.
+//
 // It returns the final answer, or a partial Result with StopReasonMaxRounds when
 // the budget is exhausted without a final answer. Step errors are wrapped with %w
 // so callers can classify them with errors.Is.
@@ -81,6 +85,7 @@ func (l *Loop) Run(ctx context.Context, sessionID string, messages []model.Messa
 			res.StopReason = outcome.stopReason
 			l.saveCheckpoint(ctx, sessionID, step, msgs, outcome.stopReason)
 			l.extractMemory(ctx, msgs, step)
+			l.settleTurn(ctx, sessionID, msgs, res)
 			return res, nil
 		}
 
@@ -100,6 +105,7 @@ func (l *Loop) Run(ctx context.Context, sessionID string, messages []model.Messa
 			res.StopReason = StopReasonToolLoopTerminated
 			l.saveCheckpoint(ctx, sessionID, step, msgs, StopReasonToolLoopTerminated)
 			l.extractMemory(ctx, msgs, step)
+			l.settleTurn(ctx, sessionID, msgs, res)
 			return res, nil
 		}
 	}
@@ -109,5 +115,6 @@ func (l *Loop) Run(ctx context.Context, sessionID string, messages []model.Messa
 	res.StopReason = StopReasonMaxRounds
 	l.saveCheckpoint(ctx, sessionID, l.maxRounds, msgs, StopReasonMaxRounds)
 	l.extractMemory(ctx, msgs, l.maxRounds)
+	l.settleTurn(ctx, sessionID, msgs, res)
 	return res, nil
 }