chore: update dependencies 2026-04-22

[tembleking]

Automated dependency update

[Copilot]

Pull request overview

Automated dependency update for the project’s Go module dependencies and Nix-based build/packaging inputs.

Changes:

• Bump Go dependencies (notably github.com/mark3labs/mcp-go and github.com/oapi-codegen/runtime) and refresh go.sum.
• Update Nix build inputs: vendorHash in package.nix and nixpkgs pin in flake.lock.
• Refresh base container image digests/hashes for both amd64 and aarch64.

Reviewed changes

Copilot reviewed 4 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
package.nix	Updates vendorHash to match refreshed Go module vendoring for Nix builds.
go.mod	Bumps direct deps and updates several indirect golang.org/x/* versions.
go.sum	Aligns sums with the updated Go dependency graph.
flake.lock	Advances the pinned nixpkgs revision/hash.
docker-base-amd64.nix	Updates base image digest and fixed-output hash for amd64.
docker-base-aarch64.nix	Updates base image digest and fixed-output hash for aarch64.

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