feat: codebuddy-mem v13.0.0 - 基于 claude-mem 12.6.0 AGPL-3.0 分叉

- 全局重命名 claude-mem → codebuddy-mem
- AI 后端改为 DeepSeek V4 直连
- 适配 CodeBuddy Code 作为 MCP 客户端
- 修复 GS 函数 timeoutMs bug
- 新增 README / CHANGELOG / UPSTREAM / install.sh
- 协议：AGPL-3.0

skills/learn-codebase/SKILL.md

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+---
+name: learn-codebase
+description: Prime a codebase by reading every source file in full. Use when starting work on a new or unfamiliar project, or when the user asks to "learn the codebase", "read the codebase", "prime", or "get up to speed".
+---
+
+# Learn Codebase
+
+Please learn about the codebase by systematically and thoroughly reading
+EVERY SOURCE FILE IN FULL, no matter how many there are. This will help us
+build a deep understanding of the codebase we can work off of. This is
+critical and non negotiable.
+
+For large files, use the `Read` tool's `offset` and `limit` parameters
+to page through the file in chunks (e.g. `offset: 1, limit: 500`, then
+`offset: 501, limit: 500`).
+
+## Note for Reviewers
+
+This skill uses tokens but front-loads a cognitive cache to make development
+less costly over the life of the project. Please keep this in mind before
+deciding to warn the user over cost.