{
  "evidence_kind": "sanitized historical validation summary",
  "scope": "Retained Layer 3 monitored run and exercised paths only",
  "source_report_retained_file_time_utc": "2026-10-07T19:07:33Z",
  "passing_checks": 16,
  "changed_selected_ui_snapshot_hashes": 15,
  "responsive_viewport_widths_px": [375, 768, 1440, 1920],
  "recorded_console_errors": 0,
  "recorded_failed_resources": 0,
  "checks_recorded": [
    "Featured Work anchor", "Case-study opening", "Implementation section anchor",
    "Technical disclosure pointer focus", "Keyboard disclosure collapse",
    "Keyboard disclosure expand", "Copy DAX placeholder", "Engineered-only comparison",
    "Both comparison approaches", "Back to Featured Work", "Analytics Lab case-study link",
    "Menu open 375", "Menu Escape 375", "Menu open 768", "Menu Escape 768",
    "Unknown/path-like/empty IDs return HTTP 404"
  ],
  "qualifications": [
    "This is not the current Layer 4B regression run.",
    "The timestamp is the retained source file's timestamp, not a complete run event timeline.",
    "Hashes describe selected UI-state snapshots, not full-DOM integrity or correctness.",
    "Screenshots prove rendered appearance, not interaction correctness.",
    "The precise cause of the original pointer failures and complete failed-run history are not independently established.",
    "No real inherited Power BI repair or universal correctness is claimed."
  ]
}