docs(cyrene): cmd/cyrene 存量英文注释中文化（22 个非测试文件，仅注释）

- 四组并行完成：main/wire*.go、wire_capacity|channels|runtime、channels|persona_*|emotion|observability、
  voice|plugins|stream|skills|vision|subagent_tool|extractor|mcp|sessionread_tool|terminal_tool。
- 机械校验（git diff -U0 去 // 行与空行）仅剩 wire_frontend.go:84 一处行尾注释：代码前缀
  「\ta.gw = gw 」经 cat -A 与 HEAD 逐字节比对一致（allow 清单已声明）。
- 验收：隔离 worktree（HEAD + 本批 patch）go build/vet 绿、全树 58 包 ok、
  linux/amd64 + darwin/arm64 交叉编译绿；gofmt -l 干净。
- 备注：整树两次红均为负载敏感 flake（backthink / orchestration 的 timeout 类用例单独 -count=20 全过）。

cmd/cyrene/emotion.go

@@ -9,52 +9,45 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/loop"
 )
 
-// This file wires the persona emotion state machine (design/01 §2: 情绪状态机 +
-// 好感度曲线 follow the persona/character, never a behavior mode) into the agent
-// loop's turn boundary. The loop stays emotion-agnostic: it reports each settled
-// turn and carries the returned mood label onto Result.Mood, which the
-// persistence layer writes onto the assistant message (design/16 §3.3).
+// 本文件把 persona 情绪状态机（design/01 §2：情绪状态机 + 好感度曲线跟随
+// persona/角色，绝不跟随行为模式）接到 agent 循环的轮次边界上。循环保持与情绪无关：
+// 它上报每个已结算轮次，并把返回的心情标签带到 Result.Mood，由持久化层写到助手消息上
+// （design/16 §3.3）。
 //
-// Scope of this milestone (A1) — what is wired end to end:
-//   - every settled owner turn advances the bound persona's emotion machine and
-//     affection (in-memory, persona-keyed by the registry's emotion Manager);
-//   - the resulting mood rides the assistant message into chat_messages and the
-//     `message_persisted` frame, and each *change* is broadcast as a `mood` frame.
+// 本里程碑（A1）端到端接通的范围：
+//   - 每个已结算的主人轮次推进所绑定 persona 的情绪状态机与好感度（内存态，按 persona
+//     为键，由 registry 的 emotion Manager 持有）；
+//   - 由此得到的心情随助手消息进入 chat_messages 与 `message_persisted` 帧，而每次
+//     *变化* 都作为 `mood` 帧广播。
 //
-// Not wired (design/01 does not specify it): the mood is not yet injected back
-// into the system prompt, so it does not steer the reply text, and the emotion
-// state is not persisted across restarts (design/01 requires neither; the state
-// resets to the persona's configured initialState on boot).
+// 未接通（design/01 未作规定）：心情尚未反注入 system 提示，因此不会左右回复文本；
+// 情绪状态也不跨重启持久化（design/01 两者都不要求；启动时状态重置为 persona 配置的
+// initialState）。
 
-// moodEmitter is the gateway-facing sink for `mood` broadcasts. *gateway.Server
-// implements it (BroadcastMood); held as an interface so the composition root
-// stays unit-testable with a fake sink, mirroring capacityEmitter.
+// moodEmitter 是面向 gateway 的 `mood` 广播出口。*gateway.Server 实现它
+// （BroadcastMood）；这里持有接口是为了让组合根能用假实现做单元测试，与
+// capacityEmitter 一致。
 type moodEmitter interface {
 	BroadcastMood(personaID, mood string, affection int)
 }
 
-// buildEmotionObserver assembles the persona emotion observer: the registry's
-// emotion Manager supplies each persona's machine and affection, the registry
-// supplies the persona's configured affection step (好感度曲线), and every change
-// is pushed to the Web UI through publishMood.
+// buildEmotionObserver 装配 persona 情绪观察者：registry 的 emotion Manager 提供
+// 每个 persona 的状态机与好感度，registry 提供 persona 配置的好感度步长
+// （好感度曲线），每次变化都经 publishMood 推送到 Web UI。
 func (a *app) buildEmotionObserver() *emotion.Observer {
 	return emotion.NewObserver(a.personas.Emotions(), a.personas.AffectionStep, a.publishMood)
 }
 
-// onTurnEnd is the loop's turn-boundary hook (design/01 §2): a settled turn is
-// applied to the persona the loop is bound to, and the mood after the turn is
-// returned for the assistant message. An absent persona id falls back to the
-// default persona, matching how the loop is bound.
+// onTurnEnd 是循环的轮次边界钩子（design/01 §2）：已结算的轮次被施加到循环所绑定的
+// persona 上，并把该轮之后的心情返回给助手消息。persona id 缺失时退回默认 persona，
+// 与循环的绑定方式一致。
 //
-// Two gates keep this to real conversation turns:
-//   - only the user-facing conversation lane (the Web main session and its
-//     sub-sessions; IM owner-private chat rides the main session, design/16 §4.4)
-//     moves the mood. Autonomous and delegated loop calls — background thinking
-//     (sess-backthink), sub-agent work, isolated IM sessions — are not turns of
-//     the owner's conversation, so they must not rewrite her mood;
-//   - a restricted (group/stranger) conversation is read-only: the observer
-//     refuses the write, so a third party can never move her mood or affection
-//     (design/02 §3, design/11 §2).
+// 两道闸门确保只有真实对话轮次才触发：
+//   - 只有面向用户的对话车道（Web 主会话及其子会话；IM 主人私聊走主会话，
+//     design/16 §4.4）会推动心情。自主与委派的循环调用 —— 后台思考（sess-backthink）、
+//     子代理工作、隔离的 IM 会话 —— 不是主人对话的轮次，因此不得改写她的心情；
+//   - 受限（群聊/陌生人）对话是只读的：观察者拒绝写入，因此第三方永远无法左右她的
+//     心情或好感度（design/02 §3、design/11 §2）。
 func (a *app) onTurnEnd(end loop.TurnEnd) string {
 	if a.emotion == nil || !isConversationLane(end.SessionID) {
 		return ""
@@ -66,18 +59,16 @@ func (a *app) onTurnEnd(end loop.TurnEnd) string {
 	return string(a.emotion.Observe(personaID, end.UserText, !end.Env.Restricted()))
 }
 
-// isConversationLane reports whether a session belongs to the owner's live
-// conversation: the fixed main session "web" and its "web:<uuid>" sub-sessions
-// (design/16 §2.1 — IM owner-private chat is routed into the main session).
+// isConversationLane 报告某会话是否属于主人的实时对话：固定的主会话 "web" 及其
+// "web:<uuid>" 子会话（design/16 §2.1 —— IM 主人私聊被路由进主会话）。
 func isConversationLane(sessionID string) bool {
 	return sessionID == history.MainSessionID || strings.HasPrefix(sessionID, history.MainSessionID+":")
 }
 
-// publishMood broadcasts one emotion change as a `mood` frame (design/07 §3,
-// design/01 §2) so the Web 心情 badge follows the persona without a refresh. It is
-// called only when the mood actually changed, so the frame stays news rather than
-// per-turn noise. The sink is read at call time because the gateway is built after
-// the loop; before it exists the change is logged and dropped.
+// publishMood 把一次情绪变化作为 `mood` 帧广播（design/07 §3、design/01 §2），
+// 使 Web 的心情徽标无需刷新即可跟随 persona。它只在心情确实变化时调用，因此该帧
+// 是新闻而不是每轮噪声。出口在调用时读取，因为 gateway 构建在循环之后；它还不存在
+// 时该变化只记日志并丢弃。
 func (a *app) publishMood(update emotion.Update) {
 	log := logger.WithSource(a.log, "cmd/cyrene")
 	if a.moodSink == nil {