Cardano Updates

> to avoid exit exceptions during fast restarts.

...this seems cleaner for now... until we have Dijkstra working nicely;
after that we can think about which parts of Transaction we may wish to
factor out of, and share in, Conway and Dijkstra.

> by moving from chain slots to chain points we made:
> * IsChainState aware of chain points
> * TickObserved to track chain points

Fix/koios cert eval

The previous IFD approach forced cross-platform builds during evaluation,
which could cause issues when Hydra evaluates on x86_64-linux but needs
to evaluate aarch64-darwin shells.

This new approach reads the mkShell output at build time using cat,
avoiding both:
- IFD which forces builds during evaluation
- recursive-nix which is not supported on remote builders

The shell is now a normal build dependency, and its output (containing
"declare -x VAR=value" lines) is read at build time to construct the
wrapper script.

The -env jobs previously used recursive-nix to run `nix print-dev-env`
inside a derivation, but this fails on remote builders with:
  "recursive-nix is not supported yet by external derivation builders"

This commit replaces that approach with Import From Derivation (IFD):
- Read the mkShell output directly at evaluation time via builtins.readFile
- Filter out the self-referencing $out variable to break circular deps
- Embed the environment content directly in the wrapper script

The mkShell output already contains "declare -x VAR=value" lines which
is exactly what's needed. This approach:
- Avoids the recursive-nix requirement entirely
- Still includes all runtime dependencies (GHC, cabal, tools, etc.)
- Works on remote builders without special configuration

Bumps [golangci/golangci-lint-action](https://github.com/golangci/golangci-lint-action) from 9.1.0 to 9.2.0.
- [Release notes](https://github.com/golangci/golangci-lint-action/releases)
- [Commits](https://github.com/golangci/golangci-lint-action/compare/e7fa5ac41e1cf5b7d48e45e42232ce7ada589601...1e7e51e771db61008b38414a730f564565cf7c20)

---
updated-dependencies:
- dependency-name: golangci/golangci-lint-action
  dependency-version: 9.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [JamesIves/github-pages-deploy-action](https://github.com/jamesives/github-pages-deploy-action) from 4.7.3 to 4.7.6.
- [Release notes](https://github.com/jamesives/github-pages-deploy-action/releases)
- [Commits](https://github.com/jamesives/github-pages-deploy-action/compare/v4.7.3...v4.7.6)

---
updated-dependencies:
- dependency-name: JamesIves/github-pages-deploy-action
  dependency-version: 4.7.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>