consistent formatting preferences

Maintain consistent formatting and use concise, standard syntax throughout the codebase. This includes several specific formatting rules:

1. Preprocessor directives: Do not add spaces after the # symbol
2. Indentation: Use consistent indentation sizes (e.g., 2 spaces for C/C++ files)
3. Shell variables: Avoid wrapping variables in double quotes when it breaks parameter expansion
4. String operations: Use concise operators and built-in language features over verbose alternatives
5. Conditional operators: Prefer concise test operators (e.g., -n instead of ! -z)

Examples:

// Good - no space after #
#pragma warning(push)
#pragma GCC diagnostic push

// Bad - space after #
# pragma warning(push)
# pragma GCC diagnostic push

// Good - concise string concatenation
auto path = binary_directory + "/" + filename;

// Bad - verbose string construction  
auto path = binary_directory + std::string("/") + std::string(filename);

# Good - concise test operator
if [[ -n "$variable" ]]; then

# Bad - verbose test combination
if [[ ! -z "$variable" ]]; then

These formatting preferences improve code readability and maintain consistency across different languages and contexts in the codebase.