Ai video cli endpoint for pool info

[ad-astra-video]

What does this pull request do? Explain your changes. (required)
Adds a cli webserver endpoint /getAIPools to provide some data on warm and cold pools for each selector ( [capability]_[model id] ).

Note that selectors are built after first request for capability/model.

Specific updates (required)

• Add route to webserver.go and handler to handlers.go in server package
• Including header of "Show-Detail" adds the Orchestrators field to the warm and cold pools. If not included, only the InUse, SizeandSuspended` fields are included in the response.

How did you test each of these updates (required)

Added endpoint, requested a AI job and ran:
curl -H "Show-Detail: yes" http://127.0.0.1:5935/getAIPools
Response:
{"27_ByteDance/SDXL-Lightning":{"Cold":{"InUse":0,"Orchestrators":[{"InFlight":0,"Latency":0,"Url":"https://ai-testnet.ad-astra.video:9955"}],"Size":1,"Suspended":2},"Warm":{"InUse":0,"Orchestrators":null,"Size":0,"Suspended":2}}}commits and

Does this pull request close any open issues?

Checklist:

• Read the contribution guide
• make runs successfully
• All tests in ./test.sh pass
• README and other documentation updated
• Pending changelog updated