feat: sap-cli skill v2.1.0 — self-contained distributable package

- assets/: sap-cli source (v2.1.0, 26 commands, 16 object types)
- references/: tool constraints + error handling (self-contained)
- scripts/setup.py: one-click install/config/verify
- SKILL.md: full command reference + dual-platform install guide
- VERSION: 2.1.0

Built from D:/Codespace/sap-cli via scripts/pack_skill.py

assets/main.py

@@ -0,0 +1,16 @@
+"""
+sap-cli — 基于 SAP ADT REST API 的 ABAP 开发对象管理工具
+
+用法:
+  python main.py download --name ZMY_PROGRAM --type report --path ./output
+  python main.py sync     --name ZMY_PROGRAM --type report --path ./zmy_program.abap
+  python main.py delete   --name ZMY_PROGRAM --type report
+
+配置:
+  默认读取脚本同目录下的 config.ini，也可通过 --config 指定。
+  环境变量 SAP_HOST / SAP_CLIENT / SAP_USER / SAP_PASSWORD 可覆盖配置文件。
+"""
+from sapcli.cli.app import main
+
+if __name__ == "__main__":
+    main()