fix: restore Apple builds with libc 0.2.190

[sean0407]

Closes #499

Summary

Apple targets stopped compiling when libc 0.2.190 removed its daemon binding. Restore the Darwin symbol mapping used by the system library and update Cargo.lock to libc 0.2.190 so locked builds cover the affected release.

Verification

• cargo fmt -- --check — passed
• cargo check --locked --lib --target aarch64-apple-darwin — passed
• MACOSX_DEPLOYMENT_TARGET=26.0 cargo build --bin cc-switch — passed
• x86_64 Apple SDK link check for daemon$1050 — passed

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-11T04:58:58.897715Z	a1d99da	PR opened

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