Analyze the Performance and Security considerations of String Mutability and the String Freeze configuration.

Unfrozen strings cause continuous memory allocations and present security risks. Enforcing # frozen_string_literal: true optimizes memory and prevents tampering.

By default, raw Ruby string literals are mutable. Every time a line like status = 'pending' is executed, a new string object is allocated on the heap. In large loops or frequent API calls, this creates significant memory churn and triggers frequent garbage collection sweeps. Furthermore, mutable strings can be modified in-place using methods like gsub!, which can lead to accidental side effects if references are shared across classes.…