Enhance command handling and validation across multiple commands REPOST

[melihxz]

1. fixed the readFileLine function in utils.cpp:

   • Completely rewrote the logic to properly cycle through lines in a file
   • Added proper handling for empty files and lines
   • Used a vector to store all lines and modulo arithmetic for cycling

2. Fixed the project command in project_cmd.cpp:

   • Removed the problematic button click handler registration that was causing issues
   • Improved index handling with modulo arithmetic
   • Added proper validation for empty project lists

3. Updated main.cpp to handle project hint buttons properly:

   • Moved the button click handler logic from project_cmd.cpp to main.cpp
   • Added proper error handling for project file access
   • Added validation for project data and indices

4. Fixed the close command in close_cmd.cpp:

   • Added proper permission checks for both thread and ticket closing
   • Improved error handling and user feedback
   • Fixed logic for closing tickets by properly removing user access

5. Improved the rule command in rule_cmd.cpp:

   • Added better validation for command options
   • Improved error messages for invalid rule numbers
   • Added safer access to rule data

6. Enhanced the ticket command in ticket_cmd.cpp:

   • Added check to prevent users from creating multiple tickets
   • Improved error handling with detailed error messages
   • Added proper validation before creating tickets

7. Optimized the suggestion system in suggestion.cpp:

   • Added comprehensive error checking for all operations
   • Improved validation of message data before processing
   • Added better error messages for users
   • Fixed potential issues with reaction handling

8. Updated the command structure in commands.h:

   • Fixed the function signature for command functions to use const references
   • Added missing include for

These changes fix several critical issues in the code:

• logic errors in file reading that could cause undefined behavior
• Memory and resource management issues
• lack of proper error handling in several functions
• Potential security issues with missing permission checks
• inefficient algorithms for cycling through data
• improper event handler registration that could cause memory leaks

The optimizations ive made improve:

• code reliability and stability
• performance through better algoritms
• user experience with clearer error messages
• security with proper permission checking
• maintainability with cleaner code structure

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