Intent of forwardedChatError.ts ×2

All 4 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 4 tests
- platform/ 4 tests
  - agentHost/ 4 tests
    
    test/ 4 tests
    
    node/ 4 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeMapSessionEvents.test|title=claudeMapSessionEvents — direct mapper tests error_during_execution result emits a ChatError carrying duration and _meta|occurrence=1 Inherited claudeMapSessionEvents.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeMapSessionEvents.test|title=claudeMapSessionEvents — direct mapper tests successful result is_error with a proxy marker emits a ChatError carrying _meta|occurrence=1 Inherited claudeMapSessionEvents.test|title=claudeMapSessionEvents — direct mapper tests successful result is_error with a proxy marker emits a ChatError carrying _meta|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/copilotAgentSession.test|title=CopilotAgentSession event mapping error event is forwarded|occurrence=1 Inherited forwardedChatError.ts ×2
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/forwardedChatError.test|title=forwardedChatError extractForwardedErrorInfo strips the marker and attaches _meta for a marked message|occurrence=1 Inherited forwardedChatError.test|title=forwardedChatError extractForwardedErrorInfo strips the marker and attaches _meta for a marked message|occurrence=1