docs: slim README comparison table, add comprehensive book chapter

[QuantumExplorer]

Summary

• Reduce README comparison table from 6 chains to 3 (Ethereum, Solana, Dash Platform) for readability
• Add link to comprehensive Platform Comparison chapter in the book
• Book chapter covers 8 chains (Bitcoin, Ethereum, Solana, Polkadot, NEAR, Cosmos SDK, Avalanche, Dash Platform) across 25+ dimensions organized into sections:
  • Overview (purpose, consensus, finality)
  • Data and Querying (data model, querying, state proofs, light client trust)
  • Smart Contracts and Programmability (VM, languages)
  • Token Support (standards, creation, freeze/pause, minting, distributions)
  • Project and Ecosystem (license, language, SDKs, identity, privacy)

Test plan

• README table renders cleanly with 3 columns
• Book chapter added to SUMMARY.md

🤖 Generated with Claude Code

Summary by CodeRabbit

• Documentation
  • Updated platform comparison documentation with streamlined feature overview.
  • Added architecture deep dive section explaining core components and verification mechanisms.
  • Expanded platform capability descriptions with emphasis on cryptographic proofs and decentralized access.
  • Introduced new platform comparison resource for reference.

[coderabbitai]

Warning

Rate limit exceeded

@QuantumExplorer has exceeded the limit for the number of commits that can be reviewed per hour. Please wait 21 minutes and 8 seconds before requesting another review.

⌛ How to resolve this issue?

After the wait time has elapsed, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout.

Please see our FAQ for further information.

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 0cf6f571-8de0-496f-b323-829e456b57b9

📥 Commits

Reviewing files that changed from the base of the PR and between 8971d45 and b572f70.

📒 Files selected for processing (1)

• book/src/platform-comparison.md

📝 Walkthrough

Walkthrough

This change adds comprehensive platform comparison documentation as a new file and updates the README with an architecture deep-dive section and refined Platform comparison table focused on three platforms: Ethereum, Solana, and Dash Platform. A corresponding documentation link is added to the book summary.

Changes

Cohort / File(s)	Summary
Documentation Updates README.md, book/src/SUMMARY.md	Modified README platform comparison table from five platforms to three (Ethereum, Solana, Dash Platform), added "Architecture deep dive" section with expanded content on Drive, Tenderrdash, GroveDB, and verification models, and updated narrative sections on key capabilities and light client verification. Added Platform Comparison link to book summary.
New Platform Comparison Documentation book/src/platform-comparison.md	New comprehensive platform comparison file covering Dash Platform against Bitcoin, Ethereum, Solana, Polkadot, NEAR, Cosmos SDK, and Avalanche across multiple dimensions: consensus, finality, throughput, data model, smart contracts, token support, and ecosystem maturity using standardized rating scale.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 ✨ A hop through platforms grand and new,
Dashboards built with Dash's view,
Tables trimmed, descriptions deep,
Architecture secrets we now keep! 📚

🚥 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 title accurately summarizes the main changes: reducing the README comparison table to 3 chains and adding a comprehensive book chapter on platform comparison.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch docs/readme-comparison-table

📝 Coding Plan

• Generate coding plan for human review comments

---

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.}

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@book/src/platform-comparison.md`:
- Line 15: The throughput rating for Dash Platform in the table row containing
"| **Throughput (simple tx)** | `-` ~7 tx/s | `+` ~15-30 tx/s | `+++` ~65,000
tx/s | `+++` Scales per parachain | `+++` ~100,000 tx/s (sharded) | `+++`
Per-chain | `++` ~4,500 tx/s | `+` ~1,000 tx/s |" is inconsistent with the
documented tiers; update the Dash Platform cell from "`+` ~1,000 tx/s" to "`++`
~1,000 tx/s" so the symbol aligns with the 1,000–10,000 tx/s tier, keeping the
numeric value unchanged.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 9af817dd-4127-43a6-9fd4-e183db24b4bc

📥 Commits

Reviewing files that changed from the base of the PR and between b42be00 and 8971d45.

📒 Files selected for processing (3)

• README.md
• book/src/SUMMARY.md
• book/src/platform-comparison.md