- Remove --use-update-script flag that breaks with flake-only repos
(nix-update-script expects default.nix at repo root)
- Fix GitHub API jq filter for detecting prereleases
- Fix Summary step bash syntax for handling input variables
- Format lib/ files that were failing formatting check
- Create lib/opencode-rules.nix with mkOpencodeRules function
- Update lib/default.nix to import opencode-rules module
- Pattern follows ports.nix: {lib}: { mkOpencodeRules = ...; }
Refs: T2, T3 of rules-system plan