FiniteLength

Mizutani's key length over a block, and the asymptotic rate it walks up to

7/7 passed in 1ms

Test	What it does	Result
test_block_approaches	The length per emitted photon rises to flaw_tolerant at the same sifting share from below, agreeing to 1e-5 at 1e18 emissions.	✅ pass
test_block_reach	The finite length dies at 44.905985, 55.045740 and 57.448692 dB at 1e10, 1e12 and 1e14 emissions, all below the asymptotic ZERO_TOL.	✅ pass
test_finite_slots	flaw_finite returns five slots against the asymptotic four, the first a whole number of bits, on the block's own yield and pz^2 share.	✅ pass
test_length_parts	Eq. (43) is the vacuum count plus the single-photon count discounted by the phase entropy, less the leakage and log2(2/(eps_s^2 - eps_est)) + log2(2/eps_c).	✅ pass
test_paper_setting	Mizutani Sec. V's 0.147 rad is 8.42 degrees to 5e-3 and is this module's delta, the deviation at Alice's pi setting.	✅ pass
test_secrecy_squared	An eps_est at or above eps_s^2 is refused by name and spending less of the square buys length.	✅ pass
test_short_block	A block too short to pay the epsilon budget returns zero and one that detects nothing is refused by name.	✅ pass