[BUG]: Unsafe string handling causing runtime errors

[Aditya30ag]

Bug Description

Description

Several parts of the codebase assume strings are non-empty and not None.

Problems

• Direct indexing like str[0] without length checks
• Splitting strings without validation
• Calling string methods on None values

Impact

• IndexError
• AttributeError
• TypeError

Affected Files

• backend/Generator/server.py

Code of Conduct

• I have joined the Discord server and will post updates there
• I have searched existing issues to avoid duplicates