Refactored the web search plugin by removing the old Bing search implementation and reorganizing the plugin structure. Introduced modular search engine classes under 'web_search_tool/engines' and utility tools under 'web_search_tool/tools' and 'web_search_tool/utils'. Updated references and initialization logic to support multiple search engines and improved maintainability. Also performed minor code cleanups and replaced 'except ...: pass' with 'except ...: ...' for brevity.
Moved statistics update to only occur when the anti-injector system is enabled. Enhanced statistics reporting to handle disabled state and improved uptime calculation to use session start time. Updated status command to provide clearer feedback when the anti-injector system is disabled or when errors occur. Also fixed a docstring in prompt_builder.py for clarity.
