docs(gateway): gateway 剩余文件注释改中文（逐行 1:1，代码零字节改动）

主人 2026-10-03 拍板「注释一律中文」；gateway 至此整包注释中文化完成（本会话共 3 批：
已推库 16 个文件 + 本批剩余文件）。
校验：机械校验（非注释改动行）= 空；剥注释后代码文本逐行比对全等（不一致文件数 0）；
全树 go test ./... 58 包 ok / 0 FAIL；交叉编译绿。

internal/services/gateway/admin_write_persona_thinking_test.go

@@ -9,11 +9,11 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/persona/loader"
 )
 
-// TestPersonaUpsertRequest_ThinkingRoundTripsThroughYAML pins the admin persona
-// write path for the optional `thinking` block: the hand-written DTO maps into
-// the loader struct, yaml.Marshal emits the documented keys, and the reload of
-// that YAML yields the same values — i.e. the field really round-trips instead of
-// being dropped by an un-whitelisted DTO.
+// TestPersonaUpsertRequest_ThinkingRoundTripsThroughYAML 钉住管理侧人格
+// 写路径对可选 `thinking` 块的处理：手写 DTO 映射进
+// loader 结构体，yaml.Marshal 输出文档化的键，重载
+// 该 YAML 得到相同的值 —— 即该字段真的往返成功，
+// 而不是被未列入白名单的 DTO 丢弃。
 func TestPersonaUpsertRequest_ThinkingRoundTripsThroughYAML(t *testing.T) {
 	t.Parallel()
 
@@ -42,9 +42,9 @@ func TestPersonaUpsertRequest_ThinkingRoundTripsThroughYAML(t *testing.T) {
 	}
 }
 
-// TestPersonaUpsertRequest_ThinkingInvalidRejected asserts an invalid thinking
-// block is rejected through the same validation the loader uses, so the admin API
-// cannot persist a mode the runtime would refuse to load.
+// TestPersonaUpsertRequest_ThinkingInvalidRejected 断言非法的 thinking
+// 块会经由 loader 所用的同一套校验被拒绝，因此管理 API
+// 无法持久化运行时拒绝加载的模式。
 func TestPersonaUpsertRequest_ThinkingInvalidRejected(t *testing.T) {
 	t.Parallel()
 
@@ -60,9 +60,9 @@ func TestPersonaUpsertRequest_ThinkingInvalidRejected(t *testing.T) {
 	}
 }
 
-// TestPersonaUpsertRequest_NoThinkingBlockOmitsTheKey asserts a request without a
-// thinking block produces none in the YAML, so no existing persona file gains a
-// noise section.
+// TestPersonaUpsertRequest_NoThinkingBlockOmitsTheKey 断言不带 thinking
+// 块的请求在 YAML 中不产出它，因此既有人格文件不会多出
+// 一段噪声。
 func TestPersonaUpsertRequest_NoThinkingBlockOmitsTheKey(t *testing.T) {
 	t.Parallel()
 
@@ -75,9 +75,9 @@ func TestPersonaUpsertRequest_NoThinkingBlockOmitsTheKey(t *testing.T) {
 	}
 }
 
-// TestApplyThinkingEdit_PreservesOnOmission is the non-destructive update rule: a
-// client that omits `thinking` keeps the stored block, an explicit block replaces
-// it, and an all-default block clears it.
+// TestApplyThinkingEdit_PreservesOnOmission 是非破坏性更新规则：
+// 省略 `thinking` 的客户端保留已存块，显式给出块则替换
+// 它，全默认值的块清除它。
 func TestApplyThinkingEdit_PreservesOnOmission(t *testing.T) {
 	t.Parallel()