v2.0.0.0 FlopFund

🎉 Flopcoin Core v2.0.0.0 (Hard Fork)

This mandatory update activates a hard fork at block 125,000, introducing:

• ✅ Enforced FlopFund Dev Fee (10% of block reward) with automatic expiry at height 600,000
• 🧠 FlopFund dev fee validation inside block creation and consensus
• 🧱 getblocktemplate RPC improvements for mining pool compatibility
• 🔐 New messageStart bytes to prevent cross-chain interference
• ⚠️ Incompatible nodes will be disconnected at fork height

💡 All pools, nodes, and wallets must upgrade before the fork height to stay connected.