Add Oracle Aggregator and CCIP Integration

- Introduced Aggregator.sol for Chainlink-compatible oracle functionality, including round-based updates and access control.
- Added OracleWithCCIP.sol to extend Aggregator with CCIP cross-chain messaging capabilities.
- Created .gitmodules to include OpenZeppelin contracts as a submodule.
- Developed a comprehensive deployment guide in NEXT_STEPS_COMPLETE_GUIDE.md for Phase 2 and smart contract deployment.
- Implemented Vite configuration for the orchestration portal, supporting both Vue and React frameworks.
- Added server-side logic for the Multi-Cloud Orchestration Portal, including API endpoints for environment management and monitoring.
- Created scripts for resource import and usage validation across non-US regions.
- Added tests for CCIP error handling and integration to ensure robust functionality.
- Included various new files and directories for the orchestration portal and deployment scripts.

docs/deployment/MAINNET_DEPLOYMENT_CHECKLIST.md

@@ -0,0 +1,76 @@
+# Ethereum Mainnet Deployment Checklist
+
+## Contracts to Deploy
+
+### 1. CCIPLogger
+- **Status**: ⏳ Pending
+- **Location**: `contracts/ccip-integration/CCIPLogger.sol`
+- **Deployment**: `npm run deploy:logger:mainnet`
+- **Dependencies**: CCIP Router (Chainlink official: `0x80226fc0Ee2b096224EeAc085Bb9a8cba1146f7D`)
+- **Constructor Parameters**:
+  - `router`: CCIP Router address
+  - `authorizedSigner`: Optional signer address (can be zero)
+  - `sourceChainSelector`: Chain-138 selector (`0x000000000000008a`)
+
+### 2. CCIPWETH9Bridge
+- **Status**: ⏳ Pending
+- **Location**: `contracts/ccip/CCIPWETH9Bridge.sol`
+- **Deployment**: `script/DeployCCIPWETH9Bridge.s.sol`
+- **Dependencies**: 
+  - CCIP Router (Chainlink official)
+  - WETH9 (already exists: `0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`)
+- **Constructor Parameters**:
+  - `ccipRouter`: CCIP Router address
+  - `weth9`: WETH9 address
+  - `feeToken`: LINK token address (`0x514910771AF9Ca656af840dff83E8264EcF986CA`)
+
+### 3. CCIPWETH10Bridge
+- **Status**: ⏳ Pending
+- **Location**: `contracts/ccip/CCIPWETH10Bridge.sol`
+- **Deployment**: `script/DeployCCIPWETH10Bridge.s.sol`
+- **Dependencies**: 
+  - CCIP Router (Chainlink official)
+  - WETH10 (already exists: `0xf4BB2e28688e89fCcE3c0580D37d36A7672E8A9f`)
+- **Constructor Parameters**:
+  - `ccipRouter`: CCIP Router address
+  - `weth10`: WETH10 address
+  - `feeToken`: LINK token address
+
+## Deployment Order
+
+1. **CCIPLogger** (first - no dependencies on new contracts)
+2. **CCIPWETH9Bridge** (can deploy after CCIPLogger)
+3. **CCIPWETH10Bridge** (can deploy after CCIPLogger)
+
+## Pre-Deployment Checklist
+
+- [ ] Run dry-run: `./scripts/deployment/dry-run-mainnet-deployment.sh`
+- [ ] Verify wallet has sufficient ETH (check: `./scripts/deployment/check-mainnet-balances.sh`)
+- [ ] Verify all environment variables are set
+- [ ] Verify contracts compile successfully
+- [ ] Verify RPC connection to Mainnet
+
+## Post-Deployment Checklist
+
+- [ ] Verify contracts on Etherscan
+- [ ] Update `.env` with deployed addresses
+- [ ] Configure bridge destinations
+- [ ] Test cross-chain functionality
+- [ ] Set up monitoring and alerts
+
+## Cost Estimates
+
+See `docs/GAS_FEE_CALCULATIONS.md` for current cost estimates.
+
+## Commands
+
+```bash
+# List all contracts
+./scripts/deployment/list-mainnet-contracts.sh
+
+# Run dry-run
+./scripts/deployment/dry-run-mainnet-deployment.sh
+
+# Deploy all contracts
+./scripts/deployment/deploy-all-mainnet.sh
+```