chore(skills): 接入 caveman 系列 agent skills

同步 skills-lock，便于压缩沟通、提交与评审等快捷模式。

Co-authored-by: Cursor <cursoragent@cursor.com>

.agents/skills/caveman-compress/scripts/__init__.py

@@ -0,0 +1,9 @@
+"""Caveman compress scripts.
+
+This package provides tools to compress natural language markdown files
+into caveman format to save input tokens.
+"""
+
+__all__ = ["cli", "compress", "detect", "validate"]
+
+__version__ = "1.0.0"