Data and code for "Learning Limits of Contact-Switching Mechanisms: A Closed-Form Convergence Floor"

This record contains the data and code supporting the manuscript "Learning Limits of Contact-Switching Mechanisms: A Closed-Form Convergence Floor" (Yalan Xu, Jin Tian, Xidian University), submitted to Mechatronics. Contents: (i) The pre-registered floor prediction tables, archived on 2026-09-13, more than two days before the first learning run — the reference values against which Section 4 of the manuscript decides. (ii) The campaign data underlying all figures and statistics: the 840-trial boundary campaign (post pose gate), the 240-trial cross-mode transfer campaign, the input table of the 118-point floor-parity comparison, the weight-sweep (lambda) series, the 68-run learning-campaign summaries, and the remaining analysis-grade JSONs (theory-side checks, calibration, leakage and leave-one-cell-out audits). (iii) README.md, with a timeline mapping each file to the protocol narrative of Section 3 of the manuscript, and MANIFEST.tsv with per-file md5 checksums. (iv) The analysis, figure-generation, and acquisition code (Python; the acquisition scripts are archived for provenance), and the publication figures in their review-numbered form. Original file modification times are preserved and constitute the inner layer of the pre-registration evidence (the deposit date is the outer layer).