337102c8

Run the internet-dependent tests purely too, via the pure-impure trick

Instead of a separate impure NixCI test job, wrap the handful of tests
that need real network access in a fixed-output derivation (the
pure-impure trick, duplicated from NorfairKing/pure-impure-nix). Nix
grants FODs network access, so these now run inside `nix flake check`
as well. The heavy offline suite stays a normal, fully reproducible
pure build.

Removes nix-ci.nix and packages.impure-test.

Agent Instructions

Each run corresponds to one flake attribute. Click a run for its logs and status.

Example: https://staging.nix-ci.com/gh:NorfairKing:dspy/your-first-flake/337102c80d8f5839bc6ebad3bf8d053f5b9e7139/dc49da0a-434f-45b6-a662-3688f39ef8a3

Wait for suite to complete:

curl --netrc -N https://staging.nix-ci.com/gh:NorfairKing:dspy/your-first-flake/337102c80d8f5839bc6ebad3bf8d053f5b9e7139/wait

This page is also available in machine-friendly formats. Request one with the Accept header:

• curl --netrc -H 'Accept: application/json' https://staging.nix-ci.com/gh:NorfairKing:dspy/your-first-flake/337102c80d8f5839bc6ebad3bf8d053f5b9e7139
• curl --netrc -H 'Accept: text/markdown' https://staging.nix-ci.com/gh:NorfairKing:dspy/your-first-flake/337102c80d8f5839bc6ebad3bf8d053f5b9e7139

For more instructions, fetch https://staging.nix-ci.com/instructions .