fix: migrate to new Darwin SDK pattern in nix flake

[joshgodsiff]

Description

Replace removed darwin.apple_sdk.frameworks.Security with apple-sdk, following the nixpkgs Darwin SDK migration (NixOS/nixpkgs#354146).

Checklist:

• My code follows the AGENTS.md guidelines (no generated google-* crates).
• I have run cargo fmt --all to format the code perfectly.
• I have run cargo clippy -- -D warnings and resolved all warnings.
• I have added tests that prove my fix is effective or that my feature works.
• I have provided a Changeset file (e.g. via pnpx changeset) to document my changes.

[changeset-bot]

⚠️ No Changeset found

Latest commit: f501816

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[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the project's Nix flake to accommodate a breaking change in the Nixpkgs Darwin SDK. By migrating to the new apple-sdk pattern, it ensures continued build compatibility and proper dependency resolution for macOS environments.

Highlights

• Darwin SDK Migration: Updated the flake.nix configuration to replace the deprecated darwin.apple_sdk.frameworks.Security with the new apple-sdk pattern, aligning with recent Nixpkgs changes.

Changelog

• flake.nix
  • Replaced darwin.apple_sdk.frameworks.Security with apple-sdk for Darwin dependencies.

Activity

• No specific activity or comments have been recorded for this pull request yet.

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[gemini-code-assist]

Code Review

This pull request updates the Nix flake configuration to align with the new Darwin SDK pattern in nixpkgs. The change correctly replaces the deprecated darwin.apple_sdk.frameworks.Security with apple-sdk. This is a necessary fix to ensure the package continues to build correctly on Darwin systems. The change is accurate and well-contained.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 55.19%. Comparing base (f6d74b0) to head (f501816).
⚠️ Report is 32 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #154   +/-   ##
=======================================
  Coverage   55.19%   55.19%           
=======================================
  Files          38       38           
  Lines       13166    13166           
=======================================
  Hits         7267     7267           
  Misses       5899     5899           

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