Intent of messages model translation non-streaming response model is rewritten to SDK format|occurrence=1

All 9 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 9 tests
- platform/ 9 tests
  - agentHost/ 9 tests
    
    test/ 9 tests
    
    node/ 9 tests
    
    claudeProxyService.test|title=ClaudeProxyService POST / 2 tests
    
    v1/ 2 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService POST /v1/messages model translation SDK ID inbound is translated to endpoint ID upstream|occurrence=1 Inherited messages model translation SDK ID inbound is translated to endpoint ID upstream|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService POST /v1/messages model translation non-streaming response model is rewritten to SDK format|occurrence=1 Introduced here
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService Credits reporting no copilot_usage in the response → no credits report|occurrence=1 Inherited claudeProxyService.test|title=ClaudeProxyService Credits reporting no copilot_usage in the response → no credits report|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService Header passthrough drops supported family without date suffix|occurrence=1 Inherited claudeProxyService.ts ×2
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService Header passthrough drops x-request-id and arbitrary headers|occurrence=1 Inherited claudeProxyService.test|title=ClaudeProxyService Header passthrough drops x-request-id and arbitrary headers|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService Header passthrough filters out unsupported betas|occurrence=1 Inherited claudeProxyService.ts ×2
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService Header passthrough forwards anthropic-version verbatim|occurrence=1 Inherited claudeProxyService.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService Header passthrough forwards supported anthropic-beta|occurrence=1 Inherited claudeProxyService.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/claudeProxyService.test|title=ClaudeProxyService Header passthrough mixed beta list keeps supported entries only|occurrence=1 Inherited claudeProxyService.ts ×1