feat(build-system): enhance CMake configuration and introduce new utility files

- Refactored CMakeLists.txt to streamline project configuration and improve readability.
- Introduced new utility functions in `utils.cmake` for setting compiler flags and managing dependencies.
- Added `dependencies.cmake` to centralize third-party dependency management, enhancing modularity.
- Updated CI workflows to include new build options and improved logging for better feedback during configuration.
- Implemented precompiled headers in various libraries to speed up compilation times.

Benefits:
- Improved maintainability and clarity of the build system.
- Enhanced build performance through precompiled headers.
- Streamlined dependency management for easier integration of third-party libraries.

src/cli/handlers/command_handlers.cc

@@ -60,9 +60,14 @@ std::vector<std::unique_ptr<resources::CommandHandler>> CreateCliCommandHandlers
   return handlers;
 }
 
+#include "cli/handlers/agent/simple_chat_command.h"
+
 std::vector<std::unique_ptr<resources::CommandHandler>> CreateAgentCommandHandlers() {
   std::vector<std::unique_ptr<resources::CommandHandler>> handlers;
   
+  // Add simple-chat command handler
+  handlers.push_back(std::make_unique<SimpleChatCommandHandler>());
+
   // Resource inspection tools
   handlers.push_back(std::make_unique<ResourceListCommandHandler>());
   handlers.push_back(std::make_unique<ResourceSearchCommandHandler>());