Earned constants pi_tau,e_tau,j

The first structural constants are read from already-earned geometry and iteration. pi_tau is obtained from the internal Euclidean/incidence geometry; e_tau from the eigenvalue structure of the -iterator; j from the split-complex idempotent boundary algebra. The dyadic scalar 2_τ is the two-channel/refinement scalar read from the earned idempotent boundary split, not the imported natural number 2. None of these constants is imported from ordinary real or complex analysis. Each records a different internal stabilization: geometric closure, iterative growth, and bipolar boundary decomposition.