Add full monorepo: virtual-banker, backend, frontend, docs, scripts, deployment

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/deploy-via-remix-instructions.sh

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+#!/bin/bash
+# Generate Remix IDE deployment instructions for MockLinkToken
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$SCRIPT_DIR/.."
+
+source .env 2>/dev/null || true
+
+RPC_URL="${RPC_URL_138:-http://192.168.11.250:8545}"
+ACCOUNT=$(cast wallet address "$PRIVATE_KEY" 2>/dev/null || echo "")
+
+echo "╔══════════════════════════════════════════════════════════════╗"
+echo "║     REMIX IDE DEPLOYMENT INSTRUCTIONS                       ║"
+echo "╚══════════════════════════════════════════════════════════════╝"
+echo ""
+echo "If automated deployment fails, use Remix IDE:"
+echo ""
+echo "1. Go to: https://remix.ethereum.org"
+echo ""
+echo "2. Create new file: MockLinkToken.sol"
+echo ""
+echo "3. Paste this contract code:"
+echo ""
+cat << 'CONTRACT_EOF'
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.19;
+
+contract MockLinkToken {
+    string public name = "Chainlink Token";
+    string public symbol = "LINK";
+    uint8 public decimals = 18;
+    
+    mapping(address => uint256) public balanceOf;
+    mapping(address => mapping(address => uint256)) public allowance;
+    uint256 public totalSupply;
+    
+    event Transfer(address indexed from, address indexed to, uint256 value);
+    event Approval(address indexed owner, address indexed spender, uint256 value);
+    
+    function mint(address to, uint256 amount) external {
+        balanceOf[to] += amount;
+        totalSupply += amount;
+        emit Transfer(address(0), to, amount);
+    }
+    
+    function transfer(address to, uint256 amount) external returns (bool) {
+        require(balanceOf[msg.sender] >= amount, "insufficient balance");
+        balanceOf[msg.sender] -= amount;
+        balanceOf[to] += amount;
+        emit Transfer(msg.sender, to, amount);
+        return true;
+    }
+    
+    function transferFrom(address from, address to, uint256 amount) external returns (bool) {
+        require(balanceOf[from] >= amount, "insufficient balance");
+        require(allowance[from][msg.sender] >= amount, "insufficient allowance");
+        balanceOf[from] -= amount;
+        balanceOf[to] += amount;
+        allowance[from][msg.sender] -= amount;
+        emit Transfer(from, to, amount);
+        return true;
+    }
+    
+    function approve(address spender, uint256 amount) external returns (bool) {
+        allowance[msg.sender][spender] = amount;
+        emit Approval(msg.sender, spender, amount);
+        return true;
+    }
+}
+CONTRACT_EOF
+
+echo ""
+echo "4. Compile the contract:"
+echo "   - Go to 'Solidity Compiler' tab"
+echo "   - Set compiler version to 0.8.19 or compatible"
+echo "   - Click 'Compile MockLinkToken.sol'"
+echo ""
+echo "5. Deploy the contract:"
+echo "   - Go to 'Deploy & Run Transactions' tab"
+echo "   - Environment: 'Injected Provider - MetaMask' (or 'Custom' with RPC)"
+echo "   - Network: ChainID 138"
+echo "   - RPC URL: $RPC_URL"
+echo "   - Account: $ACCOUNT"
+echo "   - Contract: MockLinkToken"
+echo "   - Click 'Deploy'"
+echo ""
+echo "6. After deployment:"
+echo "   - Copy the deployed contract address"
+echo "   - Mint tokens: call mint($ACCOUNT, 1000000000000000000000000)"
+echo "   - Update .env: LINK_TOKEN=<deployed_address>"
+echo ""
+echo "7. Alternative: Use Custom RPC in Remix"
+echo "   - Environment: 'Custom'"
+echo "   - RPC URL: $RPC_URL"
+echo "   - Chain ID: 138"
+echo "   - Currency Symbol: ETH"
+echo "   - Use private key from .env (import account in MetaMask first)"
+echo ""
+echo "╔══════════════════════════════════════════════════════════════╗"
+echo "║     QUICK REFERENCE                                          ║"
+echo "╚══════════════════════════════════════════════════════════════╝"
+echo ""
+echo "Network Configuration:"
+echo "  RPC URL: $RPC_URL"
+echo "  Chain ID: 138"
+echo "  Account: $ACCOUNT"
+echo ""
+echo "After deployment, update .env:"
+echo "  LINK_TOKEN=<deployed_address>"
+echo ""
+echo "Then run:"
+echo "  ./scripts/fund-bridge-contracts.sh 10"
+echo ""
+