chore: audit for responses. remove unused mgmt apis

[tomkit]

• Remove unused providers, destinations endpoints
• Fix inconsistencies in response schema
• Add shadow error logs for API response validation (this doesn't cause responses to error, but lets it through)
• Further deprecate entity and schema related fields
• Deprecate user_id on get connection

Test Plan

Example API validation error message:

supaglue-api-1          | [18:53:11.936] ERROR: API reference validation error
supaglue-api-1          |     context: {
supaglue-api-1          |       "applicationEnv": "development",
supaglue-api-1          |       "applicationName": "My Application",
supaglue-api-1          |       "applicationId": "5eec8ade-aefd-4b73-b0a2-f749cb72e81d",
supaglue-api-1          |       "orgId": "e7070cc8-36e7-43e2-81fc-ad57713cf2d3"
supaglue-api-1          |     }
supaglue-api-1          |     originalUrl: "/mgmt/v2/customers"
supaglue-api-1          |     error: {
supaglue-api-1          |       "name": "Internal Server Error",
supaglue-api-1          |       "status": 500,
supaglue-api-1          |       "path": "/mgmt/v2/customers",
supaglue-api-1          |       "errors": [
supaglue-api-1          |         {
supaglue-api-1          |           "path": "/response/0/application_id",
supaglue-api-1          |           "message": "must have required property 'application_id'",
supaglue-api-1          |           "errorCode": "required.openapi.validation"
supaglue-api-1          |         }
supaglue-api-1          |       ]
supaglue-api-1          |     }

[Describe test plan here]

Deployment instructions

[Add any special deployment instructions here]

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2 Ignored Deployments

Name	Status	Preview	Comments	Updated (UTC)
management-ui	⬜️ Ignored (Inspect)	Visit Preview		Oct 10, 2023 10:56pm
supaglue-docs	⬜️ Ignored (Inspect)	Visit Preview		Oct 10, 2023 10:56pm