Intent of chatAttachmentContext.ts ×1

All 3 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 3 tests
- platform/ 3 tests
  - agentHost/ 3 tests
    
    test/ 3 tests
    
    common/ 2 tests
    
    state/ 2 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/common/state/chatAttachmentContext.test|title=chatAttachmentContext boundChatTranscriptTurns rejects an unknown endTurn|occurrence=1 Introduced here
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/common/state/chatAttachmentContext.test|title=chatAttachmentContext resolveChatAttachment rejects an attachment whose endTurn is not retained|occurrence=1 Inherited chatAttachmentContext.test|title=chatAttachmentContext resolveChatAttachment rejects an attachment whose endTurn is not retained|occurrence=1
    
    node/ 1 test
    
    agentSideEffects.test|title=AgentSideEffects handleAction — session/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/agentSideEffects.test|title=AgentSideEffects handleAction — session/turnStarted rejects chat attachments whose endTurn is missing from the retained transcript|occurrence=1 Inherited agentSideEffects.ts ×1