feat: cortex engines get <engine_id>

[vansangpfiev]

No description provided.

[namchuai]

I will change this name back to cortex engines get because its purpose is to get an engine status (ready, not ready, etc.)
For engines <name> install, please go to #1072

[namchuai]

The PR for this is merged and I think we can move this ticket to QA.

HTTP API:

curl --location 'localhost:3928/engines/cortex.llamacpp'

Response:

{
    "description": "This extension enables chat completion API calls using the LlamaCPP engine",
    "name": "cortex.llamacpp",
    "productName": "LlamaCPP Inference Engine",
    "status": "not_initialized",
    "version": "0.0.1"
}

[gabrielle-ong]

QA: cortex engines get <engine id> works
✅ Mac
✅ Windows
✅ Ubuntu

Linked to follow-up open issue #1168 - to have consistency in the names & IDs
eg cortex engines get cortex.llamacpp when the engines list table shows Name = llama.cpp

Mac

Windows:

Ubuntu: