Remove the getJSONInt helper function and update all test assertions to
expect float64 instead of int for JSON numeric fields, as Go's JSON
decoder unmarshals all numbers to float64 by default.
This simplifies the codebase by removing an unnecessary conversion
helper and makes tests more accurate to the actual JSON format.
Changes:
- Remove getJSONInt function from book_matching_test.go
- Update 5 assertions in book_matching_test.go to use float64
- Update 2 assertions in collections_bulk_test.go to use float64
- Update 2 assertions in media_bulk_test.go to use float64
- Add nil checks for optional numeric fields to prevent panics
Affected tests:
- TestBookMatchingBulkLink
- TestBookMatchingAutoLink
- TestCollectionsBulkOperations
- TestMediaBulkOperations
Note: Some test failures remain (API returning 400 instead of 200) but
these are legitimate test issues unrelated to type assertions.
- Remove handler parameter from test function calls
- Update test signatures to match new setupTestServer return values
- Fix compilation errors after test helper refactoring
- Maintain test functionality for kobo and media endpoints
john-okeefe