Add SHC (Sharecoin)

[Share-coin]

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Summary

Adds Sharecoin (SHC) to the coins database for Komodo DeFi Framework / Komodo Wallet atomic-swap support.

• Sharecoin is a Bitcoin Core fork (ProgPoW/KawPow proof-of-work, otherwise unmodified consensus/script/RPC surface).
• Full JSON-RPC wallet interface, CLTV/CSV/Segwit all active from genesis - meets the stated XBridge/UTXO compatibility requirements.
• Address params (pubtype, p2shtype, wiftype, �ech32_hrp) match the live mainnet chain exactly.
• derivation_path/�ddress_format set for native segwit (BIP84), verified against a real HD-derived address and a real funded balance through this exact config.

Test plan

• Ran the actual Komodo DeFi Framework (kdf v3.0.0-beta) locally with this coin config and a real electrs (ElectrumX-equivalent) server.
• Confirmed HD wallet address derivation (m/84'/0'/0'/0/0) matches an independently-derived address via a separate, trusted node.
• Confirmed a real, non-zero SHC balance (5000 SHC) reported correctly through ask::enable_utxo against the listed electrum server.
• Electrum server (35.252.133.249:60401) confirmed externally reachable and returning correct, verified chain data (not just a port-open check).

Links

• GitHub: https://github.com/TVHeroes/Sharecoin
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[Share-coin]

Resubmitting against GLEECBTC/coins instead - this repo hasn't been updated since December 2025 and appears to have been superseded post-rebrand. New PR: GLEECBTC#1914