fix: Use userAgentAppId instead of customUserAgent for proper AWS SDK integration

- Change from customUserAgent to userAgentAppId with format 'RooCode#version'
- This follows the exact pattern from the upstream Cline fix
- Ensures proper user agent string formatting in CloudTrail logs

Author: ajjuaire

src/api/providers/bedrock.ts

@@ -219,7 +219,7 @@ export class AwsBedrockHandler extends BaseProvider implements SingleCompletionH
 		this.costModelConfig = this.getModel()
 
 		const clientConfig: BedrockRuntimeClientConfig = {
-			customUserAgent: `RooCode/${Package.version}`,
+			userAgentAppId: `RooCode#${Package.version}`,
 			region: this.options.awsRegion,
 			// Add the endpoint configuration when specified and enabled
 			...(this.options.awsBedrockEndpoint &&