Title: Implement minimal core framework with PL injection and update build config

Key features implemented:
- Updated package metadata and dependencies in PKG-INFO, setup files
- Added main.py entry point for backward compatibility with README launch method
- Enhanced CLI with config options, system info command, and proper signal handling
- Implemented minimal PluginManager loading only plugin-loader core plugin
- Refactored PluginLoader to follow minimal core design, removed sandbox/isolation complexity
- Updated auto-dependency plugin with safer PL injection mechanism and disabled pl_injection
- Removed legacy plugin files (firewall, frp_proxy, ftp_server, multi_lang_deploy, ops_toolbox, security_gateway) as functionality moved to core plugin system
- Improved gitignore with comprehensive ignore patterns

The changes implement a minimal core framework design where only the plugin-loader is directly loaded by the core, with all other plugins managed through the PL injection mechanism, significantly simplifying the architecture.

store/@{FutureOSS}/lifecycle/README.md

@@ -0,0 +1,30 @@
+# lifecycle 生命周期管理
+
+管理插件的状态转换和钩子函数。
+
+## 功能
+
+- 状态机：`pending` → `running` → `stopped`
+- 支持状态转换验证
+- 提供生命周期钩子：
+  - `before_start`
+  - `after_start`
+  - `before_stop`
+  - `after_stop`
+- 支持扩展能力注入
+
+## 状态转换
+
+```
+pending → running → stopped
+              ↕
+          (可重启)
+```
+
+## 使用
+
+```python
+lc = lifecycle_plugin.create("my-plugin")
+lc.on("after_start", lambda: print("started"))
+lc.start()
+```