[SDK][CLI] Support CServe Recipe endpoints

[V2arK]

Testing for adding a fake recipe

Adding a testing recipe:

centml cserve-recipe update ~/Downloads/platform_db_test.json --cluster-id 1012
Processing 1 models from ~/Downloads/platform_db_test.json...
Target cluster ID: 1012

============================================================
✓ Update Complete
============================================================

CServe recipes update completed

Processed Models (1):
  ✓ Test/Test-VL-2B-Instruct

Resulting Recipe:

centml cserve-recipe list

CServe Recipes (19 found)

...

Model: Qwen/QwQ-32B
  Fastest:
    Hardware: ID: 1050 (details not found)
    Recipe: Qwen/QwQ-32B
    Parallelism: TP=2, PP=1

Model: Test/Test-VL-2B-Instruct
  Fastest:
    Hardware: small (ID: 1074, 1xH200)
    Recipe: Test/Test-VL-2B-Instruct
    Parallelism: TP=N/A, PP=N/A

Platform result:

Deleting the test recipe:

centml cserve-recipe delete Test/Test-VL-2B-Instruct
Are you sure you want to delete recipe for model 'Test/Test-VL-2B-Instruct'? [y/N]: y
✓ Successfully deleted recipe for model: Test/Test-VL-2B-Instruct

and the model is gone from the CLI and the platform:

Testing for updating a real recipe

centml cserve-recipe update ~/Downloads/platform_db_test.json --cluster-id 1012
Processing 1 models from ~/Downloads/platform_db_test.json...
Target cluster ID: 1012

============================================================
✓ Update Complete
============================================================

CServe recipes update completed

Processed Models (1):
  ✓ Qwen/Qwen2.5-VL-7B-Instruct