init: MindOS CLI 本地执行体（从 mindOSv2/mindos-cli 独立）

- 独立 pyproject.toml（pip install -e .）
- vendor_hermes.sh 已改为显式路径模式（不再依赖相对目录）
- 包含 hermes vendor 快照

mindcli/_vendor/agent/__init__.py

@@ -0,0 +1,6 @@
+"""Agent internals -- extracted modules from run_agent.py.
+
+These modules contain pure utility functions and self-contained classes
+that were previously embedded in the 3,600-line run_agent.py. Extracting
+them makes run_agent.py focused on the AIAgent orchestrator class.
+"""