fix(async-context-compression): reverse-unfolding to prevent progress drift

- Reconstruct native tool-calling sequences using reverse-unfolding mechanism
- Strictly use atomic grouping for safe native tool output trimming
- Add comprehensive test coverage for unfolding logic and issue drafts
- READMEs and docs synced (v1.4.1)

docs/plugins/filters/async-context-compression.md

@@ -1,15 +1,13 @@
 # Async Context Compression Filter
 
-**Author:** [Fu-Jie](https://github.com/Fu-Jie/openwebui-extensions) | **Version:** 1.4.0 | **Project:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions) | **License:** MIT
+**Author:** [Fu-Jie](https://github.com/Fu-Jie/openwebui-extensions) | **Version:** 1.4.1 | **Project:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions) | **License:** MIT
 
 This filter reduces token consumption in long conversations through intelligent summarization and message compression while keeping conversations coherent.
 
-## What's new in 1.4.0
+## What's new in 1.4.1
 
-- **Atomic Message Grouping**: Introduced structure-aware grouping for `assistant-tool-tool-assistant` chains to prevent "No tool call found" errors.
-- **Tail Boundary Alignment**: Implemented automatic correction for truncation points to ensure they don't fall inside a tool-calling sequence.
-- **Chat Session Locking**: Added a session-based lock to prevent multiple concurrent summary tasks for the same chat ID.
-- **Enhanced Traceability**: Improved summary formatting to include message IDs, names, and metadata for better context tracking.
+- **Reverse-Unfolding Mechanism**: Accurately reconstructs the expanded native tool-calling sequence during the outlet phase to permanently fix coordinate drift and missing summaries for long tool-based conversations.
+- **Safer Tool Trimming**: Refactored `enable_tool_output_trimming` to strictly use atomic block groups for safe trimming, completely preventing JSON payload corruption.
 
 ---
 

docs/plugins/filters/async-context-compression.zh.md

@@ -1,17 +1,15 @@
 # 异步上下文压缩过滤器
 
-**作者:** [Fu-Jie](https://github.com/Fu-Jie/openwebui-extensions) | **版本:** 1.4.0 | **项目:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions) | **许可证:** MIT
+**作者:** [Fu-Jie](https://github.com/Fu-Jie/openwebui-extensions) | **版本:** 1.4.1 | **项目:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions) | **许可证:** MIT
 
 > **重要提示**：为了确保所有过滤器的可维护性和易用性，每个过滤器都应附带清晰、完整的文档，以确保其功能、配置和使用方法得到充分说明。
 
 本过滤器通过智能摘要和消息压缩技术，在保持对话连贯性的同时，显著降低长对话的 Token 消耗。
 
-## 1.4.0 版本更新
+## 1.4.1 版本更新
 
-- **原子消息组 (Atomic Grouping)**: 引入结构感知的消息分组逻辑，确保工具调用链被整体保留或移除，彻底解决 "No tool call found" 错误。
-- **尾部边界自动对齐**: 实现了截断点的自动修正逻辑，确保历史上下文截断不会落在工具调用序列中间。
-- **会话级异步锁**: 增加了基于 `chat_id` 的后台任务锁，防止同一会话并发触发多个总结任务。
-- **元数据溯源增强**: 优化了总结输入格式，在总结中保留了消息 ID、参与者名称及关键元数据，提升上下文可追踪性。
+- **逆向展开机制**: 引入 `_unfold_messages` 机制以在 `outlet` 阶段精确对齐坐标系，彻底解决了由于前端视图折叠导致长轮次工具调用对话出现进度漂移或跳过生成摘要的问题。
+- **更安全的工具内容裁剪**: 重构了 `enable_tool_output_trimming`，现在严格使用原子级分组进行安全的原生工具内容裁剪，替代了激进的正则表达式匹配，防止 JSON 载荷损坏。
 
 ---
 

docs/plugins/filters/index.md

@@ -22,7 +22,7 @@ Filters act as middleware in the message pipeline:
 
     Reduces token consumption in long conversations through intelligent summarization while maintaining coherence.
 
-    **Version:** 1.4.0
+    **Version:** 1.4.1
 
     [:octicons-arrow-right-24: Documentation](async-context-compression.md)
 

docs/plugins/filters/index.zh.md

@@ -22,7 +22,7 @@ Filter 充当消息管线中的中间件：
 
     通过智能总结减少长对话的 token 消耗，同时保持连贯性。
 
-    **版本：** 1.4.0
+    **版本：** 1.4.1
 
     [:octicons-arrow-right-24: 查看文档](async-context-compression.md)