Command: ios heap execute

Usage: ios heap execute <object address> <method name> [--return-string]

Executes a method on an Objective-C object on the heap. This allows dynamic
invocation of object methods for testing and exploration.

Flags:
   --return-string   Convert the return value to a string

Examples:
   ios heap execute 0x12345678 "description"
   ios heap execute 0x12345678 "description" --return-string
