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>

artifacts/@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol/SafeERC20.dbg.json

@@ -0,0 +1,4 @@
+{
+  "_format": "hh-sol-dbg-1",
+  "buildInfo": "../../../../../../build-info/ad36f0191c68faf0db469d2a65d028e9.json"
+}

artifacts/@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol/SafeERC20.json

@@ -0,0 +1,43 @@
+{
+  "_format": "hh-sol-artifact-1",
+  "contractName": "SafeERC20",
+  "sourceName": "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol",
+  "abi": [
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "spender",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "currentAllowance",
+          "type": "uint256"
+        },
+        {
+          "internalType": "uint256",
+          "name": "requestedDecrease",
+          "type": "uint256"
+        }
+      ],
+      "name": "SafeERC20FailedDecreaseAllowance",
+      "type": "error"
+    },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "token",
+          "type": "address"
+        }
+      ],
+      "name": "SafeERC20FailedOperation",
+      "type": "error"
+    }
+  ],
+  "bytecode": "0x60566037600b82828239805160001a607314602a57634e487b7160e01b600052600060045260246000fd5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea264697066735822122087d2304e86c07eccd4f9f39f79c28cf8db16e46e5d8ee645e6e8b23c0c5e7a7e64736f6c63430008140033",
+  "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea264697066735822122087d2304e86c07eccd4f9f39f79c28cf8db16e46e5d8ee645e6e8b23c0c5e7a7e64736f6c63430008140033",
+  "linkReferences": {},
+  "deployedLinkReferences": {}
+}