docs: add changelog entry for list_directory tree rewrite (#1828)

Author: n-WN

CHANGELOG.md

@@ -11,6 +11,7 @@ Only write entries that are worth mentioning to users.
 
 ## Unreleased
 
+- Core: Cap `list_directory` output as a depth-limited tree to prevent token-limit blowup in large directories — replaces the unbounded flat listing with a 2-level tree (root: 30 entries, child: 10 per subdirectory), dirs-first alphabetical sorting, and `"... and N more"` truncation hints so the model knows to explore further (fixes #1809)
 - Shell: Add blocking update gate on interactive shell startup — when a newer version is detected (from the existing background check cache), a blocking prompt appears before the shell loads, offering `[Enter]` to upgrade immediately, `[q]` to continue and be reminded next time, or `[s]` to skip reminders for that version; respects the `KIMI_CLI_NO_AUTO_UPDATE` environment variable; replaces the previous repeating toast notification for available updates
 - Auth: Harden OAuth token refresh to prevent unnecessary re-login — 401 errors now trigger automatic token refresh and retry instead of forcing `/login`; multiple simultaneous CLI instances coordinate refresh via a cross-process file lock to avoid race conditions; token persistence uses atomic writes with `fsync` to prevent corruption; adds dynamic refresh threshold, 5xx retry during token refresh, and proper token revocation cleanup
 - Core: Fix agent loop silently stopping when model response contains only thinking content — detect think-only responses (reasoning content with no text or tool calls) as an incomplete response error and retry automatically

docs/en/release-notes/changelog.md

@@ -4,6 +4,7 @@ This page documents the changes in each Kimi Code CLI release.
 
 ## Unreleased
 
+- Core: Cap `list_directory` output as a depth-limited tree to prevent token-limit blowup in large directories — replaces the unbounded flat listing with a 2-level tree (root: 30 entries, child: 10 per subdirectory), dirs-first alphabetical sorting, and `"... and N more"` truncation hints so the model knows to explore further (fixes #1809)
 - Shell: Add blocking update gate on interactive shell startup — when a newer version is detected (from the existing background check cache), a blocking prompt appears before the shell loads, offering `[Enter]` to upgrade immediately, `[q]` to continue and be reminded next time, or `[s]` to skip reminders for that version; respects the `KIMI_CLI_NO_AUTO_UPDATE` environment variable; replaces the previous repeating toast notification for available updates
 - Auth: Harden OAuth token refresh to prevent unnecessary re-login — 401 errors now trigger automatic token refresh and retry instead of forcing `/login`; multiple simultaneous CLI instances coordinate refresh via a cross-process file lock to avoid race conditions; token persistence uses atomic writes with `fsync` to prevent corruption; adds dynamic refresh threshold, 5xx retry during token refresh, and proper token revocation cleanup
 - Core: Fix agent loop silently stopping when model response contains only thinking content — detect think-only responses (reasoning content with no text or tool calls) as an incomplete response error and retry automatically

docs/zh/release-notes/changelog.md

@@ -4,6 +4,7 @@
 
 ## 未发布
 
+- Core：限制 `list_directory` 输出为深度受限的树形结构，防止大目录导致 token 超限——将无上限的扁平列表替换为 2 级树（根级最多 30 条、每个子目录最多 10 条），按目录优先的字母序排列，截断处显示 `"... and N more"` 提示以引导模型进一步探索（修复 #1809）
 - Shell：新增交互式 Shell 启动时的阻断式更新提醒——当检测到有新版本可用（来自已有的后台检查缓存）时，在 Shell 加载之前显示阻断提示，提供 `[Enter]` 立即升级、`[q]` 暂时跳过下次继续提醒、`[s]` 跳过该版本后续提醒；支持 `KIMI_CLI_NO_AUTO_UPDATE` 环境变量；替代了之前可用更新的重复 toast 通知
 - Auth：加固 OAuth 令牌刷新以防止不必要的重新登录——401 错误现在会自动触发令牌刷新并重试，而非强制 `/login`；多个同时运行的 CLI 实例通过跨进程文件锁协调刷新以避免竞争条件；令牌持久化使用原子写入配合 `fsync` 防止损坏；新增动态刷新阈值、令牌刷新过程中的 5xx 重试，以及正确的令牌吊销清理
 - Core：修复模型响应仅包含思考内容时 agent loop 静默停止的问题——将仅含思考内容（无文本或工具调用）的响应检测为不完整响应错误并自动重试