Replace store.WithContext with normal ctx param

[jemiahw]

Previously the entity store had a WithContext(ctx) method to pass in the context. This PR replaces that with the standard pattern passing context in as the first argument to the methods.

[Copilot]

Pull Request Overview

This PR refactors the entity store API to remove the custom WithContext method and instead pass context as the first argument in all relevant methods.

• Replaces WithContext and its associated functionality in the entity store and its mocks.
• Updates all related tests and API endpoints to use the standard context parameter.
• Adjusts error handling and CDC write functions accordingly.

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
test/mock/entity.go	Removed WithContextFunc field and updated function signatures.
entity/v09_test.go	Updated test calls to pass context.Background() to store methods.
entity/store_test.go	Modified test calls to pass context.Background() in store method calls.
entity/store.go	Refactored store implementation to remove WithContext and pass context param.
api/single_entity_write_test.go	Updated mock functions to accept context parameter.
api/single_entity_read_test.go	Updated mock functions to accept context parameter.
api/query_test.go	Revised ReadEntitiesFunc in mocks to accept context parameter.
api/bulk_write_test.go	Updated mock functions to accept context parameter.
api/api_test.go	Removed WithContext usage and updated context propagation in tests.
api/api_gomux.go	Replaced WithContext calls with direct context parameter passing.

Comments suppressed due to low confidence (1)

entity/store.go:51

• Update the function documentation to describe the purpose of the new 'ctx' parameter and its usage, ensuring consistency with the updated method signature.

func (s store) ReadEntities(ctx context.Context, entityType string, q query.Query, f etre.QueryFilter) ([]etre.Entity, error) {