docs(comments): 注释中文化 · internal/runtime/model + internal/services/backthink（54 文件，纯替换）

- 只翻注释/文档字符串：`go/scanner` 剥注释后按 token 序列+literal 逐 token 比对，**54/54 文件 SAME**；
  改动文件总行数与 HEAD 漂移 = 0（严格 1:1，无合并/拆行）
- 裁决编号与 design 节号逐字保留（03.4.1/03.4.2/03.4.3/14.4.1/14.4.5/07.4.2-4、design/04 §3.1/§3.2 等）；
  `chat_template_kwargs` / `enable_thinking` / `reasoning_effort` / `thinking:{type}` 字段名与形状说明未动
- 存疑译法（已登记）：`persona` 在叙事语境用「角色」、标识符语境保留 `persona`（仓库既有模块本身混用）；
  `rung`→「级」；`provider` 存在「提供商/提供者」两种落笔（可按需一键统一）
- 复核：build/vet 绿 + 两包测试绿；gofmt 干净；残留英文注释 0 条
- 既有存量（未修，只报告）：`model/anthropic_test.go` 612 行 >500；`applyAnthropicEvent` 115 行 >80

internal/services/backthink/trigger.go

@@ -7,22 +7,22 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/iot"
 )
 
-// TriggerKind classifies what woke a thinking pass, so the push path can apply the
-// right policy: a heartbeat is gate-governed (60min≤1 / cooldown / per-flavor), an
-// event is a real signal the owner wants to hear about and bypasses the rate gate.
+// TriggerKind 归类唤醒一轮思考的原因，好让推送路径套用
+// 正确的策略：心跳受门控管辖（60min≤1 / 冷却 / 按风格），
+// 事件是主人确实想听到的真实信号、绕过频率门。
 type TriggerKind int
 
 const (
-	// TriggerHeartbeat is the periodic autonomous reflection. Its proactive push is
-	// throttled by the PushGate so the owner is never spammed by empty reflections.
+	// TriggerHeartbeat 是周期性自主反思。它的主动推送受
+	// PushGate 限流，使主人绝不会被空洞的反思刷屏。
 	TriggerHeartbeat TriggerKind = iota
-	// TriggerEvent is a real event (IoT device change, reminder, owner-relevant
-	// system event). Its push bypasses the PushGate — "该发就发" — subject only to
-	// same-event dedup.
+	// TriggerEvent 是真实事件（IoT 设备变化、提醒、与主人相关的
+	// 系统事件）。它的推送绕过 PushGate——"该发就发"——只受
+	// 同一事件去重约束。
 	TriggerEvent
 )
 
-// String returns a stable label for logs and records.
+// String 返回用于日志与记录的稳定标签。
 func (k TriggerKind) String() string {
 	switch k {
 	case TriggerEvent:
@@ -34,40 +34,40 @@ func (k TriggerKind) String() string {
 	}
 }
 
-// Bus subjects the service subscribes to for event-triggered thinking. They are
-// the contract defined by design/12 §1: an IoT state change, a reminder firing,
-// or a generic system event.
+// 本服务为事件驱动思考订阅的总线主题。它们是
+// design/12 §1 定义的契约：一次 IoT 状态变化、一次提醒触发，
+// 或一次泛化的系统事件。
 const (
-	// SubjectReminderTrigger is the bus subject on which reminders fire.
+	// SubjectReminderTrigger 是提醒触发所用的总线主题。
 	SubjectReminderTrigger = "reminder.trigger"
-	// SubjectSystemEvent is the bus subject for generic system events.
+	// SubjectSystemEvent 是泛化系统事件的总线主题。
 	SubjectSystemEvent = "system.event"
 )
 
-// SystemEvent is the optional typed payload a caller may publish to
-// SubjectSystemEvent to convey a system notice. Import defaults to Normal. Under
-// design/12 §6 策略一, a low-value system notice (a join/leave ping, generic
-// platform noise) is downgraded to a registration-only record and does not wake a
-// full thinking pass; only a high-importance (owner-relevant) system event thinks,
-// so a busy public platform cannot trigger a flood of expensive reflections.
+// SystemEvent 是调用方可发布到 SubjectSystemEvent 以传达
+// 系统通知的可选类型化负载。Import 默认为 Normal。在
+// design/12 §6 策略一之下，低价值的系统通知（加入/退出 ping、泛化的
+// 平台噪声）被降级为仅登记一条记录，不唤醒
+// 一整轮思考；只有高重要度（与主人相关）的系统事件才思考，
+// 因此繁忙的公开平台无法触发昂贵反思的洪流。
 type SystemEvent struct {
 	Summary string
 	Import  Importance
 }
 
-// Trigger describes what woke a thinking pass: the source subsystem, a
-// human-readable summary and the event's estimated importance.
+// Trigger 描述唤醒一轮思考的原因：来源子系统、
+// 可读摘要与事件的估计重要度。
 type Trigger struct {
 	Source  string
 	Summary string
 	Import  Importance
-	// Kind records whether this pass was the periodic heartbeat or a real event, so
-	// the push path can bypass the rate gate for a genuine event (owner mandate).
+	// Kind 记录本轮是周期性心跳还是真实事件，好让
+	// 推送路径能为真实事件绕过频率门（主人要求）。
 	Kind TriggerKind
 }
 
-// heartbeatTrigger is the periodic, low-importance trigger. Low importance means
-// the pass rarely interrupts the user, honouring "默认不发送 chat 类型消息".
+// heartbeatTrigger 是周期性、低重要度的触发。低重要度意味着
+// 该轮很少打扰用户，遵守 "默认不发送 chat 类型消息"。
 func heartbeatTrigger() Trigger {
 	return Trigger{Source: "heartbeat", Summary: "periodic autonomous reflection", Import: ImportanceLow, Kind: TriggerHeartbeat}
 }
@@ -84,10 +84,10 @@ func startupTrigger() Trigger {
 	return Trigger{Source: "startup", Summary: StartupSummary, Import: ImportanceLow, Kind: TriggerHeartbeat}
 }
 
-// triggerForEvent maps a bus event to a Trigger. An IoT device change is treated
-// as normal importance, a reminder firing as high importance, and a generic
-// system event as normal importance. Every event is tagged TriggerEvent so its
-// proactive push bypasses the heartbeat PushGate.
+// triggerForEvent 把总线事件映射为 Trigger。IoT 设备变化按
+// 普通重要度处理，提醒触发按高重要度，泛化的
+// 系统事件按普通重要度。每个事件都打上 TriggerEvent，因此其
+// 主动推送绕过心跳的 PushGate。
 func triggerForEvent(e bus.Event) Trigger {
 	switch e.Subject {
 	case iot.DeviceUpdateSubject: