Optimize operations endpoints

[BCerki]

Describe the task

Optimize operations endpoints as needed (see profiling results in Endpoint profiling.ods):

• 200 GET | /api/registration/operations
• 200 POST | /api/registration/operations
• 200 PUT | /api/registration/operations/002d5a9e-32a6-4191-938c-2c02bfec592d
• 200 GET | /api/registration/operations/002d5a9e-32a6-4191-938c-2c02bfec592d/facilities
• 200 GET | /api/registration/operations/002d5a9e-32a6-4191-938c-2c02bfec592d/with-documents
• 200 GET | /api/registration/operations/02a3ab84-26c6-4a79-bf89-72f877ceef8e/operation-representatives
• 200 PUT | /api/registration/operations/02a3ab84-26c6-4a79-bf89-72f877ceef8e/registration/new-entrant-application
• 200 PUT | /api/registration/operations/02a3ab84-26c6-4a79-bf89-72f877ceef8e/registration/operation-representative
• 200 GET | /api/registration/operations/556ceeb0-7e24-4d89-b639-61f625f82084/registration/operation
• 200 POST | /api/registration/operations/556ceeb0-7e24-4d89-b639-61f625f82084/registration/operation-representative
• 200 GET | /api/registration/operations/current
• 200 PATCH | /api/registration/operations/df62d793-8cfe-4272-a93e-ea9c9139ff82/boro-id
• 200 GET | /api/registration/operations/df62d793-8cfe-4272-a93e-ea9c9139ff82/registration/opted-in-operation-detail
• 200 PATCH | /api/registration/operations/df62d793-8cfe-4272-a93e-ea9c9139ff82/registration/submission
• 200 PATCH | /api/registration/operations/e1300fd7-2dee-47d1-b655-2ad3fd10f052/bcghg-id
• 200 GET | /api/registration/operations/registration-purposes

Acceptance Criteria

• first
• second
• third

Definition of Done

• first
• second
• third

Additional context

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