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.

oss/plugin/manager.py

@@ -1,33 +1,52 @@
-"""插件管理器 - 只加载 plugin-loader"""
+"""插件管理器 - 只加载 plugin-loader，其他所有插件由 plugin-loader 插件自行管理"""
 from typing import Any, Optional
 
 from oss.plugin.loader import PluginLoader
 
 
 class PluginManager:
-    """管理基础插件"""
+    """极简插件管理器
+    
+    遵循「最小化核心框架」设计哲学：
+    - 核心框架只负责加载 plugin-loader 插件
+    - 所有其他插件（HTTP、WebSocket、Dashboard 等）都由 plugin-loader 插件扫描和加载
+    - store/@{FutureOSS}/ 是唯一的插件来源
+    """
 
     def __init__(self):
         self.loader = PluginLoader()
         self.plugin_loader: Optional[Any] = None
 
     def load(self):
-        """加载基础插件"""
-        # 只加载 plugin-loader，其他都是可选的
+        """仅加载 plugin-loader 核心插件
+        
+        plugin-loader 插件会负责：
+        1. 扫描 store/@{FutureOSS}/ 目录
+        2. 加载所有启用的插件
+        3. 处理依赖关系
+        4. 执行 PL 注入机制
+        """
+        # 只加载 plugin-loader，其他所有插件都由它来管理
         pl_info = self.loader.load_core_plugin("plugin-loader")
         if pl_info:
             self.plugin_loader = pl_info["instance"]
 
     def start(self):
-        """启动基础插件"""
+        """启动 plugin-loader，它会初始化并启动所有其他插件"""
         if self.plugin_loader:
+            # plugin-loader.init() 会扫描并加载 store/ 中的所有插件
             self.plugin_loader.init()
+            # plugin-loader.start() 会按依赖顺序启动所有插件
             self.plugin_loader.start()
 
     def stop(self):
-        """停止基础插件"""
+        """停止所有插件（由 plugin-loader 统一管理）"""
         if self.plugin_loader:
             try:
                 self.plugin_loader.stop()
-            except Exception:
-                pass
+            except KeyboardInterrupt:
+                print("[PluginManager] 用户中断停止过程")
+            except Exception as e:
+                import traceback
+                print(f"[PluginManager] 停止插件时出错：{type(e).__name__}: {e}")
+                traceback.print_exc()