Add dataset analysis and reproducibility guide

[omariosc]

What changed

• expands the LASK landing page with the staged 37-recording release and complete 115-recording analysis denominators
• documents the three cohorts, data modalities, jaw-channel interpretation, phase labels, motion features, statistical methods, results, and clinical interpretation
• adds the Scientific Reports analysis entry point with configurable input roots and portable provenance manifests
• publishes aggregate result tables while excluding unreleased participant-level intermediates
• adds six representative publication figures
• adds pinned Python dependencies and an automated release validator
• updates the citation metadata with the Zenodo version DOI, concept DOI, and accepted BTPN citation

Why

The repository previously described only the initial Zenodo subset. This update makes it a transparent companion to the complete quantitative peg-transfer analysis while preserving the distinction between the current public release and the forthcoming full data release.

Validation

• full 115-recording analysis regenerated successfully
• 115 inventory recordings, 107 primary recordings, 38 phase recordings, and 425 placement-complete cycles confirmed
• 29 inferential feature tests and eight corrected continuous associations confirmed
• analysis script SHA-256 matches the public manifest
• Python syntax, Markdown links, YAML parsing, and repository release validator pass