Updated the Bruno API test collection to include tests for the new
3-state has_cover filter functionality.
Changes:
- Added test cases for has_cover=true, has_cover=false, and has_cover
not specified to verify all three states work correctly
- Updated environment configuration to support the new filter parameter
These tests verify that the has_cover filter properly handles:
- NULL (not specified): Returns all books
- TRUE: Returns only books with cover images
- FALSE: Returns only books without cover images
This ensures the 3-state boolean implementation works correctly across
all scenarios and prevents regression of the bug where searches were
returning 0 results.
john-okeefe
bac77312b4