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/loop.go

@@ -73,6 +73,10 @@ type Result struct {
 	// ToolCallsExecuted is the number of tool calls the loop invoked, including
 	// those that failed.
 	ToolCallsExecuted int
+	// Mood is the persona's mood label for this turn, as returned by the
+	// OnTurnEnd hook ("" when no hook is wired). The persistence layer carries it
+	// onto the assistant message (design/16 §3.3).
+	Mood string
 }
 
 // Loop is the default agent execution engine. It is configured once via New and
@@ -80,32 +84,33 @@ type Result struct {
 // dispatcher, stores, recorder, tracer) are themselves concurrency-safe, which
 // they are by contract. Run keeps all loop state on the stack.
 type Loop struct {
-	agent           *agent.Agent
-	tools           *tool.Dispatcher
-	capacity        *capacity.Decider
-	onCapacity      func(capacity.Event)
-	memory          *memory.Store
-	retriever       *memory.Retriever
-	working         *memory.WorkingMemory
-	extractor       memory.Extractor
-	checkpoint      checkpointStore
-	tracer          *trace.Tracer
-	flow            *FlowPublisher
-	guards          *guardrail.Pipeline
-	personaID       string
-	timeLocation    *time.Location
-	timeZoneName    string
-	maxRounds       int
-	toolExec        string
-	toolParallelism int
-	hooks              ToolLoopHooks
-	onStream           func(model.StreamEvent)
-	onAudit            func(AuditEvent)
-	maxContextTokens   int
-	compactor          Compactor
-	transformContext   func(context.Context, []model.Message, int) []model.Message
-	imageResolver      ImageResolver
-	log                *slog.Logger
+	agent            *agent.Agent
+	tools            *tool.Dispatcher
+	capacity         *capacity.Decider
+	onCapacity       func(capacity.Event)
+	memory           *memory.Store
+	retriever        *memory.Retriever
+	working          *memory.WorkingMemory
+	extractor        memory.Extractor
+	checkpoint       checkpointStore
+	tracer           *trace.Tracer
+	flow             *FlowPublisher
+	guards           *guardrail.Pipeline
+	personaID        string
+	timeLocation     *time.Location
+	timeZoneName     string
+	maxRounds        int
+	toolExec         string
+	toolParallelism  int
+	hooks            ToolLoopHooks
+	onStream         func(model.StreamEvent)
+	onAudit          func(AuditEvent)
+	onTurnEnd        TurnEndHook
+	maxContextTokens int
+	compactor        Compactor
+	transformContext func(context.Context, []model.Message, int) []model.Message
+	imageResolver    ImageResolver
+	log              *slog.Logger
 }
 
 // New builds a Loop from opts, applying defaults. A non-positive MaxRounds
@@ -153,6 +158,7 @@ func New(opts Options) *Loop {
 		hooks:            opts.Hooks,
 		onStream:         opts.OnStream,
 		onAudit:          opts.OnAudit,
+		onTurnEnd:        opts.OnTurnEnd,
 		maxContextTokens: opts.MaxContextTokens,
 		compactor:        compactor,
 		transformContext: opts.TransformContext,