fix: fix input validation and improve error handling in main function

Author: SemoMoh

scanner/src/app.cpp

@@ -283,7 +283,7 @@ void App::defaultActions() {
     }
 
     // if file mode is enabled, and no input file is specified, throw an exception
-    if (!interactiveMode && inputFilePath.empty()) {
+    if (!interactiveMode && inputFilePath.empty() && !showHelp) {
         throw std::invalid_argument("Input file not specified, use -h or --help for usage information.");
     }
 

scanner/src/mian.cpp

@@ -5,19 +5,17 @@
 
 #include "app.hpp"
 
-int main(int argc, char *argv[])
-{
+int main(int argc, char *argv[]) {
     // Create an App object and run the application
-    try
-    {
+    try {
         TINY::SCANNER::App app(argc, argv);
         app.run();
-    }
-    catch (std::exception &e)
-    {
+    } catch (std::exception &e) {
         // set color to red
         std::cout << "\033[1;31m";
         std::cerr << "Error: " << e.what() << std::endl;
+        // reset
+        std::cout << "\033[0m";
         return EXIT_FAILURE;
     }
     return EXIT_SUCCESS;