Providers are allowed to be "" empty strings

[lukehinds]

Describe the issue

Providers are str for validation by Pydantic, but this still allows "" empty strings, which results in the server being unable to restart

Error: 1 validation error for ProviderEndpoint
name
 String should have at least 1 character [type=string_too_short, input_value='', input_type=str]
 For further information visit https://errors.pydantic.dev/2.10/v/string_too_short

Steps to Reproduce

create an empty provider name and submit, empty to restart the server

Operating System

Other

IDE and Version

n/a

Extension and Version

n/a

Provider

Anthropic

Model

n/a

Codegate version

n/a

Logs

No response

Additional Context

No response