chore(nix): bump nixpkgs 24.11 → 25.11 + refresh lock

[WomB0ComB0]

Bumps nixpkgs channel 24.11 → 25.11 (current stable) and refreshes flake.lock. Closes the reproducibility gap — repos without a committed lockfile now have one, and the shared channel matches across the org.

Mechanical: no changes to devPackages or shellHook.

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Updated development environment to use Nixpkgs 25.11 stable release, providing access to updated packages and tools for improved build consistency and dependency management.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 183f5f23-68f2-46b9-866a-27b163370c44

📥 Commits

Reviewing files that changed from the base of the PR and between b17b16e and 05d3814.

⛔ Files ignored due to path filters (1)

• flake.lock is excluded by !**/*.lock

📒 Files selected for processing (1)

• flake.nix

---

📝 Walkthrough

Walkthrough

The pull request updates the Nixpkgs flake input URL in flake.nix from the nixos-24.11 channel to the nixos-25.11 channel, pinning the flake to evaluate against a newer Nixpkgs version. No other flake inputs, outputs, or logic were modified.

Changes

Cohort / File(s)	Summary
Nixpkgs Version Update flake.nix	Updated inputs.nixpkgs.url from github:nixos/nixpkgs/nixos-24.11 to github:nixos/nixpkgs/nixos-25.11.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A nibble of time brings a hop to a newer way,
From twenty-four springs to twenty-five's ray,
With Nixpkgs refreshed, the flake takes flight,
Fresh packages blooming from the latest light! 🌿

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/bump-nixpkgs-25.11

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[gemini-code-assist]

Code Review

This pull request updates the nixpkgs input and lock file from version 24.11 to 25.11, alongside an update to the rust-overlay. Feedback indicates that a shellHook in the configuration likely still references the previous version string, which should be updated to maintain consistency in the development environment.

[gemini-code-assist]

The nixpkgs input has been updated to nixos-25.11, but the shellHook on line 50 still explicitly prints Channel: nixos-24.11. This inconsistency should be resolved to ensure the development environment correctly reports the active channel version.