docs: clarify Dash consensus validation scope

[PastaPastaPasta]

Summary

• document the Dash-specific verification primitives available across dashcore, dash-spv, and dash-spv-ffi
• distinguish individual ChainLock, InstantSend, LLMQ, and DIP4 support from full stateful block validation
• list major consensus surfaces that are not currently implemented as a complete pipeline
• clarify that the C ABI exposes SPV and wallet APIs, not a general full-consensus validator

Validation

• git diff --check
• repository pre-commit hooks (cargo fmt and cargo check)

This pull request was created by Codex.

Summary by CodeRabbit

• Documentation
  • Expanded documentation for Dash special transaction data types.
  • Added guidance on simplified masternode list and LLMQ processing.
  • Documented ChainLock and InstantSend verification support.
  • Added an overview of Dash verification components and how they work together.
  • Clarified current consensus limitations, including block validation, UTXO updates, rewards, governance, asset locks, and mining templates.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 0e9c279a-eb93-41bc-9f1c-a0875404b7db

📥 Commits

Reviewing files that changed from the base of the PR and between 21aaafe and 3d9653e.

📒 Files selected for processing (1)

• README.md

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The README documents Dash-specific verification features, the roles of the dashcore, dash-spv, and dash-spv-ffi components, and the consensus validation features that remain unsupported.

Changes

Dash verification documentation

Layer / File(s)	Summary
Verification support overview README.md	Adds feature bullets for Dash transaction data, masternode and quorum processing, BLS validation, ChainLocks, and InstantSend. Describes the roles of dashcore, dash-spv, and dash-spv-ffi.
Consensus limitations README.md	Lists unsupported header, UTXO, reward, governance, asset-lock, and mining validation features. Clarifies that individual payload verification is not full block validation.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to 3d965

This documentation-only change clarifies Dash verification capabilities and limitations without changing product behavior; no actionable merge-blocking risk remains after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the documentation change. It accurately identifies the clarified scope of Dash consensus validation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/clarify-consensus-scope

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.06%. Comparing base (21aaafe) to head (3d9653e).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #997   +/-   ##
=======================================
  Coverage   77.06%   77.06%           
=======================================
  Files         329      329           
  Lines       83317    83317           
=======================================
+ Hits        64209    64210    +1     
+ Misses      19108    19107    -1     

Flag	Coverage Δ
core	78.25% <ø> (ø)
ffi	51.15% <ø> (-0.01%)	⬇️
rpc	20.00% <ø> (ø)
spv	92.03% <ø> (+<0.01%)	⬆️
wallet	79.44% <ø> (ø)
see 5 files with indirect coverage changes