feat: RIP-305 cross-chain airdrop — wRTC on Solana + Base

[CelebrityPunks]

Summary

RIP-305 cross-chain airdrop implementation:

• Solana SPL token creation script with metadata
• Base L2 ERC-20 wRTC contract (OpenZeppelin ERC20 + Burnable + Ownable)
• Deployment scripts for both chains
• Token details: wRTC, 6 decimals, mintable by bridge operator

Closes Scottcjn/rustchain-bounties#1149

[github-actions]

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[achievefibromyalgia-lgtm]

Code Review: #1031 RIP-305 Cross-Chain Airdrop

Overall: Major feature for interoperability!

Strengths:

• Implements RIP-305 cross-chain airdrop
• Adds wRTC on Solana + Base
• Important for ecosystem growth

Verdict: ✅ Approved!

[CelebrityPunks]

@Scottcjn — I owe you an honest apology.

I used an automated loop overnight that flooded the repo with hundreds of low-quality PRs. That was disrespectful to your time and your project, and I understand why you closed everything. You were right to do it.

The early PRs (security audit, Rust wallet, SDKs, dashboards) were genuine work that I'm proud of — you merged 25 of them and they added real value. But I got greedy with volume and ruined the trust we'd built. That's on me.

If you're open to it, I'd like to resubmit just the 5-6 PRs that were genuinely substantial — the cross-chain airdrop contracts, the agent economy explorer, and the E2E test suite. One at a time, properly. No automation, no flooding.

If not, I completely understand. Either way, I'm sorry for wasting your time. RustChain is a cool project and you deserved better from a contributor.

— Abraham (CelebrityPunks)