docs(comments): 注释中文化 · internal/runtime/orchestration（29 文件，纯替换）

- 只翻注释/文档字符串：剥离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）
- 裁决编号与 design 节号（02.4.3 / 11.4.2 / design/05 §9 等）逐字保留
- 复核：go build 绿；orchestration 及其子包（audit/comm）测试绿；gofmt 干净

internal/runtime/orchestration/audit/context.go

@@ -9,52 +9,47 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/model"
 )
 
-// ErrQueryEmpty is returned by ContextAuditor.Keyword when the query is empty
-// or blank. Use errors.Is to test for it.
+// ErrQueryEmpty 在 ContextAuditor.Keyword 的 query 为空或全为空白时返回。用 errors.Is
+// 判断它。
 var ErrQueryEmpty = errors.New("audit: query is empty")
 
-// contextRadius is how many messages on each side of a keyword hit are included
-// in the surrounding window (one above and one below).
+// contextRadius 是关键词命中处两侧各纳入多少条消息作为上下行窗口（上下各一条）。
 const contextRadius = 1
 
-// Located describes a single keyword match within a subagent context.
+// Located 描述子代理上下文中的单次关键词命中。
 type Located struct {
-	// Line is the 1-based index of the matched message in the full context.
+	// Line 是命中消息在完整上下文中的 1 基下标。
 	Line int
-	// Surrounding is a window centered on the matched message: the message
-	// immediately before it, the matched message, and the message immediately
-	// after it, clamped at the context boundaries. It always contains the
-	// matched message.
+	// Surrounding 是以命中消息为中心的窗口：紧邻其前的那条消息、命中消息本身，
+	// 以及紧随其后的一条消息，在上下文边界处截断。它始终包含命中消息。
 	Surrounding []model.Message
 }
 
-// ContextAuditor provides read-only, traceable access to a subagent's context.
-// It snapshots the message list at construction so later mutation by the caller
-// does not change what the auditor reports. It is a value type that holds no
-// storage or policy; the orchestral layer decides which context to inspect.
+// ContextAuditor 提供对某个子代理上下文的只读、可追溯访问。它在构造时快照消息列表，
+// 因此调用方此后的修改不会改变审计器所报告的内容。它是值类型，不持有存储或策略；由
+// 编排层决定要检视哪段上下文。
 type ContextAuditor struct {
 	messages []model.Message
 }
 
-// NewContextAuditor snapshots messages so subsequent caller mutations do not
-// affect the auditor. A nil input is allowed and yields an empty context.
+// NewContextAuditor 快照 messages，使调用方后续的修改不影响审计器。允许传入 nil，
+// 此时得到一个空上下文。
 func NewContextAuditor(messages []model.Message) ContextAuditor {
 	cp := make([]model.Message, len(messages))
 	copy(cp, messages)
 	return ContextAuditor{messages: cp}
 }
 
-// Full returns a defensive copy of the entire context.
+// Full 返回整段上下文的防御性拷贝。
 func (a ContextAuditor) Full() []model.Message {
 	cp := make([]model.Message, len(a.messages))
 	copy(cp, a.messages)
 	return cp
 }
 
-// Tail returns the last n messages of the context in their original order.
+// Tail 按原顺序返回上下文最后 n 条消息。
 //
-// n <= 0 yields an empty, non-nil slice; n >= len returns a copy of the full
-// context. The result is a defensive copy.
+// n <= 0 得到空但非 nil 的切片；n >= len 返回整段上下文的拷贝。结果是防御性拷贝。
 func (a ContextAuditor) Tail(n int) []model.Message {
 	if n <= 0 {
 		return []model.Message{}
@@ -68,13 +63,11 @@ func (a ContextAuditor) Tail(n int) []model.Message {
 	return out
 }
 
-// Keyword locates the first message whose text contains query, using a
-// case-insensitive substring match against the message's text parts (image
-// payloads are ignored). It returns the message's 1-based index and a
-// surrounding window, or nil, nil when there is no match.
+// Keyword 定位首个文本包含 query 的消息，对消息的文本分段做大小写不敏感的子串匹配
+// （图片载荷被忽略）。它返回该消息的 1 基下标与一个上下行窗口；无命中时返回
+// nil, nil。
 //
-// It returns ErrQueryEmpty for a blank query and wraps ctx.Err() when ctx is
-// canceled. Only the earliest match is reported.
+// query 为空时返回 ErrQueryEmpty，ctx 被取消时包装 ctx.Err()。只报告最早的命中。
 func (a ContextAuditor) Keyword(ctx context.Context, query string) (*Located, error) {
 	if strings.TrimSpace(query) == "" {
 		return nil, fmt.Errorf("%w: query is blank", ErrQueryEmpty)
@@ -91,8 +84,7 @@ func (a ContextAuditor) Keyword(ctx context.Context, query string) (*Located, er
 	return nil, nil
 }
 
-// window returns up to 2*contextRadius+1 messages centered on index i, clamped
-// to the context boundaries.
+// window 返回以 index i 为中心、至多 2*contextRadius+1 条消息，并在上下文边界处截断。
 func (a ContextAuditor) window(i int) []model.Message {
 	lo := i - contextRadius
 	hi := i + contextRadius
@@ -110,7 +102,7 @@ func (a ContextAuditor) window(i int) []model.Message {
 	return out
 }
 
-// messageText returns the concatenated text of a message's text parts.
+// messageText 返回一条消息各文本分段拼接后的文本。
 func messageText(m model.Message) string {
 	var b strings.Builder
 	for _, c := range m.Content {