Intent of c" typed|occurrence=1, e" typed and runtime command exists|occurrence=1

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
    
    copilotSlashCommandCompletionProvider.test|title=CopilotSlashCommandCompletionProvider provideCompletionItems filters to / 4 tests
    
    compact when "/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/copilotSlashCommandCompletionProvider.test|title=CopilotSlashCommandCompletionProvider provideCompletionItems filters to /compact when "/c" typed|occurrence=1 Introduced here
    
    env when "/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/copilotSlashCommandCompletionProvider.test|title=CopilotSlashCommandCompletionProvider provideCompletionItems filters to /env when "/e" typed and runtime command exists|occurrence=1 Introduced here
    
    research and / 1 test
    
    rubber-duck when "/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/copilotSlashCommandCompletionProvider.test|title=CopilotSlashCommandCompletionProvider provideCompletionItems filters to /research and /rubber-duck when "/r" typed|occurrence=1 Inherited r" typed|occurrence=1
    
    security-review when "/ 1 test
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/copilotSlashCommandCompletionProvider.test|title=CopilotSlashCommandCompletionProvider provideCompletionItems filters to /security-review when "/s" typed|occurrence=1 Inherited s" typed|occurrence=1