Build warnings on macOS: deprecated libc mach timebase APIs and unsafe_op_in_unsafe_fn

[vabaimova]

When installing catenary-mcp via cargo install --git https://github.com/TwoWells/Catenary catenary-mcp on macOS, there are several build warnings in the catenary-proc crate.

Details

1. Deprecated libc Mach Timebase APIs: Multiple warnings recommend using the mach2 crate instead of deprecated libc::mach_timebase_info_data_t and libc::mach_timebase_info.
2. Rust 2024 Compatibility (unsafe_op_in_unsafe_fn): Multiple E0133 warnings because unsafe operations are performed inside unsafe fn without an explicit unsafe {} block (a lint/warning in the 2024 edition).

Build Output

warning: use of deprecated type alias `libc::mach_timebase_info_data_t`: Use the `mach2` crate instead
   --> crates/catenary-proc/src/lib.rs:537:34

warning: use of deprecated function `libc::mach_timebase_info`: Use the `mach2` crate instead
   --> crates/catenary-proc/src/lib.rs:538:15

warning[E0133]: call to unsafe function `platform::read_task_info` is unsafe and requires unsafe block
   --> crates/catenary-proc/src/lib.rs:535:29
...

These warnings should be addressed to keep the macOS build clean and prepare for the Rust 2024 edition.