Agent Maestro v0.3.0

What's Changed

• refactor: 收束 ~/.maestro 目录布局的构建 by @xezzon in #65
• feat(plugin): full plugin lifecycle with reworked loading architecture by @xezzon in #66
• feat(logging): 统一日志设施落盘 ~/.maestro/logs，凭证不进日志 (#55) by @xezzon in #69
• ci: improve CI caching and switch release to manual dispatch (#54) by @xezzon in #72

Full Changelog: v0.2.0...v0.3.0