- Rename createTestEbookID to createTestMediaItemID in test_helpers.go
- Update test helper comments and variable names (ebookReq -> mediaItemReq, etc.)
- Update all test file references:
- analytics_test.go
- book_matching_test.go
- collections_bulk_test.go
- kobo_test.go
- media_bulk_test.go
- opds_test.go
- Rename ebookID variable to mediaItemID in kobo_test.go
- Update test data to use 'Test Media Item' instead of 'Test Ebook'
- Remove handler parameter from test function calls
- Update test signatures to use new return values from setupTestServer
- Fix compilation errors after test helper refactoring
- Maintain test functionality while simplifying setup
john-okeefe