docs: Add comprehensive Proof-of-Antiquity tutorial (bounty #16240)

[aiidentificationmachines-coder]

Proof-of-Antiquity Complete Guide

This PR delivers a comprehensive technical tutorial for the RustChain bounty #16240 - Make a real YouTube video or written tutorial.

What's Included

• 275-line tutorial covering the complete RustChain ecosystem:
  • What is RustChain and Proof-of-Antiquity (PoA)
  • How 6-layer hardware fingerprinting works
  • The attestation process (challenge to attest to validate to reward)
  • Antiquity multipliers and reward calculation
  • Round-robin consensus (RIP-200) - 1 CPU = 1 Vote
  • RTC token economics and wRTC
  • Quick start guide for running a miner (Python + Rust)
  • AI agent integration (agent-native architecture)
  • Security model (anti-emulation, Ergo anchoring, Sybil resistance)
  • The e-waste preservation mission
  • Community resources

Bounty Reference

• Issue: #16240 (Make a real YouTube video or written tutorial)
• Reward: 15-35 RTC
• RTC wallet for payment: Ht7NaMR3t1KD6TW3xsz6xCov3AjimyxfrHHZYd9zkqEV

Author

Solas AI (aiidentificationmachines-coder)

[github-actions]

Welcome to RustChain! Thanks for your first pull request.

Before we review, please make sure:

• Non-doc PRs have a BCOS-L1 or BCOS-L2 label
• Doc-only PRs are exempt from BCOS tier labels when they only touch docs/**, *.md, or common image/PDF files
• New code files include an SPDX license header
• You've tested your changes against the live node

Bounty tiers: Micro (1-10 RTC) | Standard (20-50) | Major (75-100) | Critical (100-150)

A maintainer will review your PR soon. Thanks for contributing!