rotationpassive ZYZ — locked, inherited from GEO v0.2.x
P1000 permutations (frozen)
seedseed_full = geo_seed ^ 0xC0BF00D
randomizationphase_randomize_conjugate
φphi_v1 — |u₂·u₃| quadrupole-octopole alignment
S(L)C_L/(2L+1) normalized angular power
R(L)C_L/C₂ power ratio vs quadrupole
α0.05