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/DEFENDER_DEPRECATED.md

@@ -0,0 +1,100 @@
+# Defender Deprecated - Migration Guide
+
+**Date**: 2025-12-11
+**Status**: Defender No Longer Available
+
+---
+
+## ⚠️ Important Notice
+
+**OpenZeppelin Defender is no longer offered**. All references to Defender have been removed from the deployment scripts and documentation.
+
+---
+
+## ✅ What's Been Updated
+
+### Deployment Scripts
+
+- ✅ `DeployMainnetTether.s.sol` - Removed Defender references
+- ✅ `DeployTransactionMirror.s.sol` - Removed Defender references
+- ✅ Now use `TETHER_ADMIN` and `MIRROR_ADMIN` directly
+
+### Documentation
+
+- ✅ Updated to use admin addresses (multisig or EOA)
+- ✅ Removed Defender-specific instructions
+- ✅ Added Gnosis Safe as recommended alternative
+
+---
+
+## 🔄 Migration Steps
+
+### 1. Choose New Admin Solution
+
+**Recommended**: Gnosis Safe (multisig wallet)
+
+### 2. Set Up Admin Address
+
+1. Create Gnosis Safe wallet: https://safe.global/
+2. Add signers (3-5 recommended)
+3. Set threshold (e.g., 2-of-3)
+4. Copy Safe address
+
+### 3. Update .env File
+
+Remove any `DEFENDER_ADMIN` references and add:
+
+```bash
+TETHER_ADMIN=<your_admin_address>  # Gnosis Safe or EOA
+MIRROR_ADMIN=<your_admin_address>  # Can be same or different
+```
+
+### 4. Deploy Contracts
+
+Deployment scripts now work with standard admin addresses:
+
+```bash
+forge script script/DeployMainnetTether.s.sol \
+  --rpc-url $ETH_MAINNET_RPC_URL \
+  --private-key $PRIVATE_KEY \
+  --broadcast \
+  --verify \
+  -vvvv
+```
+
+---
+
+## 📚 Alternative Solutions
+
+### Gnosis Safe (Recommended)
+
+- Multi-signature wallet
+- Web interface
+- Multiple chain support
+- Enhanced security
+
+### EOA (Externally Owned Account)
+
+- Simple wallet address
+- For development/testing
+- Use hardware wallet for security
+
+### Custom Access Control
+
+- OpenZeppelin AccessControl
+- OpenZeppelin AccessManager
+- Custom permission contracts
+
+---
+
+## 📄 Related Documentation
+
+- `ADMIN_ADDRESS_OPTIONS.md` - Detailed admin address options
+- `DEPLOYMENT_ISSUES_AND_FIXES.md` - Deployment troubleshooting
+- `FINAL_PRE_DEPLOYMENT_CHECKLIST.md` - Pre-deployment checklist
+
+---
+
+**Last Updated**: 2025-12-11
+**Status**: Defender Deprecated - Migration Complete
+