DASH: engine implementation

[neavra]

Summary by CodeRabbit

• New Features
  • Added support for the Dash blockchain network, enabling transaction processing and validation for Dash mainnet operations.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

A new Dash engine wrapper is introduced in the dash package, delegating to a generic UTXO engine with Dash-specific configuration. The engine is registered in the central registry alongside other chain engines.

Changes

Cohort / File(s)	Summary
Registry integration engine/registry.go	Adds import for dash UTXO engine package and registers Dash engine instance via registry.Register(dash.NewDash()) call
Dash engine implementation engine/utxo/dash/dash.go	New file introducing Dash struct wrapping a generic utxo.Engine. Exports NewDash() constructor and three delegation methods: Supports() for chain validation, Evaluate() for rule evaluation, and ExtractTxBytes() for transaction extraction

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The pull request title clearly and specifically describes the main change: implementing a Dash engine with the addition of a Dash struct wrapper and its registration in the central registry.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch 481-dash-recipes-engine

---

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.}

[4others]

LGTM