Initial commit: CunaFinanceBsc smart contract

- Add upgradeable smart contract with vesting and staking functionality
- Include comprehensive deployment script for proxy deployments and upgrades
- Configure Hardhat with BSC testnet and verification support
- Successfully deployed to BSC testnet at 0x12d705781764b7750d5622727EdA2392b512Ca3d

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

hardhat.config.js

@@ -0,0 +1,47 @@
+require("@nomicfoundation/hardhat-ethers");
+require("@nomicfoundation/hardhat-chai-matchers");
+require("@openzeppelin/hardhat-upgrades");
+require("@nomiclabs/hardhat-etherscan");
+require("dotenv").config();
+
+const env = process.env;
+
+/** @type import('hardhat/config').HardhatUserConfig */
+module.exports = {
+  solidity: {
+    compilers: [
+      {
+        version: "0.8.20",
+        settings: {
+          optimizer: {
+            enabled: true,
+            runs: 200,
+          },
+        },
+      },
+    ],
+  },
+  mocha: {
+    timeout: 10000000,
+  },
+  networks: {
+    hardhat: {
+      chainId: 31337,
+      allowUnlimitedContractSize: true,
+    },
+    localhost: {
+      url: "http://127.0.0.1:8545",
+    },
+    bscTestnet: {
+      url: "https://virtual.binance.eu.rpc.tenderly.co/863b23c4-3a3a-4cdf-8620-41a2fd0be25b",
+      chainId: 56,
+      accounts: env.PRIVATE_KEY ? [env.PRIVATE_KEY] : [],
+    },
+  },
+  etherscan: {
+    apiKey: {
+      bsc: env.BSCSCAN_API_KEY || "",
+      bscTestnet: env.BSCSCAN_API_KEY || "",
+    }
+  },
+};