Numerical Diagnostics for Chiral Singular Sturm–Liouville Spectra: Transport Ratios, Real-Axis Checks, Evans-Zero Contours, and Depth Refinement

This companion archives the numerical diagnostic surveys supporting the analytic results of the article "Chiral Spectral Confinement and Parity-Resolved Evans-Zero Asymptotics for Singular Sturm–Liouville Problems" (preprint: 10.5281/zenodo.20723618): cutoff-extracted connection matrices and transport ratios, real-axis connection-matrix checks, multi-sector Evans-zero contour surveys with exact variational contour counting, and finite-lambda depth-refinement diagnostics. All material here is diagnostic: none of it is an input to the proofs of the main article, whose principal theorems are established analytically and unconditionally at the stated levels of generality. Section 1 records the conditional statements imported from the main article that the diagnostics reference, so that this deposit is readable on its own.