• feat: Add data source APIs and backend-selected loaders (#3435)
• feat: Add dynamic-import metadata loaders and parser subpaths (#3377, #3405)
• feat: Add GeoArrow, Arrow, SQL, and source loader coverage across geospatial formats (#3373, #3375, #3388, #3389, #3391, #3399, #3409, #3413)
• feat: Add SPZ, RAD, and Gaussian splat PLY support (#3408, #3430)
• chore: Move tests to Vitest and browser coverage to Playwright (#3349, #3350, #3351)