feat: Add LSP plugin unit tests and frontend common initialization library

- Introduced `dstalk_lsp_plugin_test` for testing LSP plugin functionalities including `lsp_trim`, `lsp_frame_message`, and `lsp_parse_content_length`.
- Created `dstalk_frontend_common` static library to encapsulate shared initialization logic for frontend components (CLI, GUI, Web).
- Implemented configuration file discovery and service querying in `dstalk_frontend_init`.
- Added internal headers for LSP and Anthropic plugins to facilitate unit testing.
- Established a mailroom system for asynchronous message passing between stateless agents, enhancing coordination and context management.

agents/STATUS.md

@@ -1,6 +1,6 @@
 # dstalk 实时编制状态
 
-> **最后更新**: 2026-05-27
+> **最后更新**: 2026-05-31
 > **数据来源**: 由 `scripts/refresh_status.py` 自动扫描全部 16 个 `agents/*/profile.md` + 5 个 `agents/groups/*.md` 生成。
 
 ## 表 1：员工状态（16 人）
@@ -40,7 +40,7 @@
 
 ## Wave 进度
 
-**已完成高水位**: W16.5（基于 16 份 profile.md 的 performance_log 聚合）
+**已完成高水位**: W17（由 CEO 直接执行，ai_common 模块提取）
 
-**已发现 Wave 编号**: W1.1, W2.1, W2.2, W5.1, W6.1, W7, W9.3, W9.4, W9.6, W9.10, W10.1, W10.2, W10.3, W10.4, W11, W11.1, W11.2, W11.3, W11.6, W11.7, W12, W12.1, W12.2, W12.4, W12.5, W12.6, W13.1, W13.2, W13.3, W13.4, W13.5, W13.6, W14.1, W14.2, W14.3, W14.4, W14.5, W15.1, W15.2, W15.3, W15.4, W15.5, W15.6, W15.7, W15.8, W15.9, W16.5
+**已发现 Wave 编号**: W1.1, W2.1, W2.2, W5.1, W6.1, W7, W9.3, W9.4, W9.6, W9.10, W10.1, W10.2, W10.3, W10.4, W11, W11.1, W11.2, W11.3, W11.6, W11.7, W12, W12.1, W12.2, W12.4, W12.5, W12.6, W13.1, W13.2, W13.3, W13.4, W13.5, W13.6, W14.1, W14.2, W14.3, W14.4, W14.5, W15.1, W15.2, W15.3, W15.4, W15.5, W15.6, W15.7, W15.8, W15.9, W16.5, W17