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.

test/ccip/CCIPIntegration.t.sol

@@ -38,7 +38,7 @@ contract CCIPIntegrationTest is Test {
         
         bytes memory messageData = abi.encode(uint256(25000000000), uint256(1), uint256(block.timestamp));
         
-        // Send oracle update
+        // Send oracle update (must be called by aggregator, which is address(this) in setUp)
         sender.sendOracleUpdate(TARGET_CHAIN_SELECTOR, 25000000000, 1, block.timestamp);
     }
     
@@ -94,6 +94,7 @@ contract CCIPIntegrationTest is Test {
         // Drain balance to cause insufficient fee
         MockLinkToken(linkToken).transfer(address(0xdead), 1000e18);
         
+        // Must be called by aggregator (address(this) in setUp)
         vm.expectRevert();
         sender.sendOracleUpdate(TARGET_CHAIN_SELECTOR, 25000000000, 1, block.timestamp);
     }
@@ -101,7 +102,7 @@ contract CCIPIntegrationTest is Test {
 
 // Mock contracts for testing
 contract MockRouter is IRouterClient {
-    function ccipSend(uint64, EVM2AnyMessage memory) external pure returns (bytes32, uint256) {
+    function ccipSend(uint64, EVM2AnyMessage memory) external payable returns (bytes32, uint256) {
         return (keccak256("mock"), 0.01e18);
     }