docs(comments): 注释中文化 · internal/services/channelbridge（纯替换）

- 只翻注释/文档字符串：剥掉注释后代码行逐字节不变（机械校验只剩允许的行尾注释形态）
- 术语对齐既有译法（owner→主人、persona→角色、engage→参与度判定、quiet hours→安静时段、backoff→退避）
- 复核：go build 绿 + channelbridge 包测试绿；gofmt 干净

internal/services/channelbridge/persona.go

@@ -8,58 +8,58 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/history"
 )
 
-// This file owns which role an inbound IM turn speaks as (DevDocs/design/22 §2
-// 裁决规则 + §7-3 + §7-4). Identity and permission stay structural — the actor
-// metadata and the session's isolation boundary decide who may do what — while the
-// role only scopes the prompt, the memory namespace, the emotion machine and the
-// thinking budget.
+// 本文件掌管一轮入站 IM 对话以哪个角色说话（DevDocs/design/22 §2
+// 裁决规则 + §7-3 + §7-4）。身份与权限仍是结构性的——actor
+// 元数据与会话的隔离边界决定谁可以做什么——而
+// 角色只界定提示词、记忆命名空间、情绪机器与
+// 思考预算的范围。
 //
-// Precedence, top down (design/22 §2):
-//  1. the session-level binding — for an owner private chat that is the main web
-//     session the message is mirrored into, so the IM mirror answers with the same
-//     role the Web client is talking to (design/22 §7-3);
-//  2. the channel-level binding — the account's channels.json personaId, used when
-//     the main session binds no role of its own (design/22 §2 方案 b);
-//  3. the global default — expressed as "", which the loop resolves to its
-//     configured default role.
+// 优先顺序，自上而下（design/22 §2）：
+//  1. 会话级绑定——对主人私聊而言即消息所镜像进的 Web 主
+//     会话，因此 IM 镜像用 Web 客户端正在对话的同一
+//     角色作答（design/22 §7-3）；
+//  2. 渠道级绑定——账号在 channels.json 中的 personaId，用于
+//     主会话自身未绑定角色时（design/22 §2 方案 b）；
+//  3. 全局默认——以 "" 表示，循环会把它解析为
+//     自己配置的默认角色。
 //
-// A restricted conversation (group chat or stranger, i.e. every isolated sess-xxx
-// session) is deliberately excluded from 1 and 2: it is forced onto the default
-// role (design/22 §7-4, the conservative choice), so a channel binding can never
-// put a third party's conversation into a role's memory namespace.
+// 受限会话（群聊或陌生人，即每个隔离的 sess-xxx
+// 会话）被刻意排除在 1 和 2 之外：它被强制使用默认
+// 角色（design/22 §7-4 的保守选择），因此渠道绑定绝不会
+// 把第三方的会话放进某个角色的记忆命名空间。
 
-// sessionPersonaReader is the optional narrower view of the history store used to
-// read a session's bound role. *history.Store implements it; a bridge built
-// without one (or with a store that predates design/22) simply resolves no session
-// binding, which is the global default.
+// sessionPersonaReader 是历史存储的可选窄接口视图，用于
+// 读取会话绑定的角色。*history.Store 实现了它；未装配它
+// （或所用存储早于 design/22）的桥接器解析不出会话
+// 绑定，即全局默认。
 type sessionPersonaReader interface {
 	SessionPersona(ctx context.Context, sessionID string) (string, error)
 }
 
-// resolvePersona returns the role id one inbound turn runs as. target says where
-// the turn's conversation lives (the mirrored main session vs an isolated
-// session), sess carries the structurally resolved isolation boundary and account
-// is the receiving adapter's registration name (platform:confId) used for the
-// channel-level lookup.
+// resolvePersona 返回一轮入站对话所用的角色 id。target 指明
+// 该轮对话所在之处（镜像的主会话还是隔离
+// 会话），sess 携带结构化解析出的隔离边界，account
+// 是接收方适配器的注册名（platform:confId），用于
+// 渠道级查询。
 func (b *Bridge) resolvePersona(ctx context.Context, sess session.Session, target inboundTarget, account string) string {
-	// design/22 §7-4: a group/stranger conversation never plays a bound role.
+	// design/22 §7-4：群聊/陌生人会话绝不扮演绑定角色。
 	if !target.private {
 		return ""
 	}
-	// design/22 §7-3: an owner private chat mirrors into the main session, so it
-	// answers as whatever role that session is bound to.
+	// design/22 §7-3：主人私聊镜像进主会话，因此它
+	// 以该会话绑定的角色作答。
 	if pid := b.mainSessionPersona(ctx); pid != "" {
 		return pid
 	}
-	// design/22 §2 方案 b: the account's channel-level role, used only when the main
-	// session binds no role of its own.
+	// design/22 §2 方案 b：账号的渠道级角色，仅当主
+	// 会话自身未绑定角色时使用。
 	return b.personaOfAdapter(account)
 }
 
-// mainSessionPersona returns the role bound to the main web session, or "" when
-// the session inherits the global default. A missing reader or a read error also
-// yields "": a chat must never be blocked by a metadata lookup, and the fallback is
-// the pre-existing default role.
+// mainSessionPersona 返回 Web 主会话绑定的角色；会话继承
+// 全局默认时返回 ""。读取器缺失或读取出错同样
+// 返回 ""：聊天绝不能因元数据查询而被阻塞，而回退
+// 就是原有的默认角色。
 func (b *Bridge) mainSessionPersona(ctx context.Context) string {
 	if b.history == nil {
 		return ""
@@ -75,20 +75,20 @@ func (b *Bridge) mainSessionPersona(ctx context.Context) string {
 	return strings.TrimSpace(pid)
 }
 
-// personaOfAdapter returns the cached channel-level role of one adapter
-// registration name, or "" when none is bound (or none was resolved at connect
-// time).
+// personaOfAdapter 返回某个适配器注册名已缓存的渠道级角色，
+// 未绑定（或连接时未解析出）时
+// 返回 ""。
 func (b *Bridge) personaOfAdapter(account string) string {
 	b.mu.RLock()
 	defer b.mu.RUnlock()
 	return b.adapterPersona[account]
 }
 
-// rememberAdapterPersona resolves and caches the channel-level role of an adapter
-// that just connected. Resolving at connect/reload time (rather than per message)
-// keeps the inbound hot path free of config reads, while a panel save still takes
-// effect immediately: it writes channels.json and calls Reload, which rebuilds and
-// reconnects the platform's adapters, refreshing this cache.
+// rememberAdapterPersona 解析并缓存刚连接的适配器的渠道级
+// 角色。在连接/重载时解析（而不是按消息解析）
+// 让入站热路径无需读配置，同时面板保存仍能
+// 立即生效：它写 channels.json 并调用 Reload，后者重建并
+// 重连该平台的适配器，刷新此缓存。
 func (b *Bridge) rememberAdapterPersona(account string) {
 	if b.channelPersona == nil {
 		return
@@ -104,9 +104,9 @@ func (b *Bridge) rememberAdapterPersona(account string) {
 	b.adapterPersona[account] = pid
 }
 
-// forgetAdapterPersona drops an adapter's cached channel role when the account is
-// removed (or renamed) by a reload, so a removed account can never keep answering
-// as a role that is no longer configured.
+// forgetAdapterPersona 在账号被重载移除（或更名）时丢弃该适配器
+// 缓存的渠道角色，使已移除的账号绝不会继续
+// 以不再配置的角色作答。
 func (b *Bridge) forgetAdapterPersona(account string) {
 	b.mu.Lock()
 	defer b.mu.Unlock()