block_rct() returns block geometries as wk::rct vectors with CRS attached.
This enables direct plotting via plot(block_rct(b)) and integration with
the wk ecosystem.
block_data() returns a data.frame with full block metadata: i, j indices,
pixel offsets (xoff, yoff, xsize, ysize), geographic extents (xmin, ymin,
xmax, ymax), and a geometry column as wk::rct.
blocks_in_bbox() and blocks_in_ext() find blocks intersecting a query
region, returning either wk::rct (default) or full metadata via data = TRUE.
Plotting functions (plot_block(), plot_block_bbox(), plot_block_ext())
now use wk::wk_plot() internally and return wk::rct objects invisibly.
wk for geometry representation.