EurBinned

The position-momentum overlap, and the side the shipped closed form errs on

7/7 passed in 962ms

Test	What it does	Result
test_area_ceiling	A bin area at or above 2 pi is refused rather than returning a quality of zero.	✅ pass
test_ball_grouping	log2 gamma matches the printed grouping where it is evaluable and returns a number where it is not.	✅ pass
test_ball_monotone	The max-entropy price rises with the average bin distance.	✅ pass
test_binned_conservative	The closed-form quality never exceeds the exact one built from the Slepian eigenvalue.	✅ pass
test_binned_product	The quality depends on the product of the two bin widths and nothing else.	✅ pass
test_binned_tightness	The shortfall against the exact quality is 1.0e-10 bits at delta = 0.01 and 9.99e-3 at 1.	✅ pass
test_differential_limit	Unit bin area returns log2(2 pi), the differential relation at hbar = 1.	✅ pass