chore(008): 纳入 Claude Code / claw-code 源码素材并忽略缓存文件

- 收录 008 文章分析用的两份源码(claude-code-source-code、claw-code),
  已移除其内嵌 .git,作为普通素材文件入库
- .gitignore 增加 .DS_Store、__pycache__/、*.pyc,屏蔽系统与缓存噪音

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

articles/008/claw-code/rust/crates/tools/.gitignore

@@ -0,0 +1 @@
+.clawd-agents/

articles/008/claw-code/rust/crates/tools/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "tools"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+publish.workspace = true
+
+[dependencies]
+runtime = { path = "../runtime" }
+reqwest = { version = "0.12", default-features = false, features = ["blocking", "rustls-tls"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+
+[lints]
+workspace = true