Feat/includepath

[Latte72R]

System Include Path Detection Modernization

• Replaces hardcoded platform-specific include paths in main.c with a new function, add_include_paths_from_compiler, which dynamically queries the system C compiler (cc -E -v -xc -) to detect include paths at runtime. This approach improves portability and robustness across different environments.
• Adds several utility functions to support this new logic, such as fd_readline, lstrip_whitespace, and rstrip_whitespace, for processing compiler output.

close #76