{
  "_doc": "IMP-91 u11 — F5 final.html extraction axis. Pin step13_render.json metadata (step_status / pipeline_path_connected / render_inputs.zones_count / render_inputs.layout_preset / slide_title|footer non-empty / final_html_size_bytes) AND structural markers extracted from the on-disk final.html (HTML <title>, slide root count, slide-footer presence, data-zone-position/data-template-id topology). The HTML-extracted zone topology MUST match the step12 slot_payload (position, template_id) sequence already pinned in slot_payload.json (u8) — Jinja2 renders from step12, not step09, so step12 is the correct upstream parity source (step09 selection vs step12 __empty__ collapse is intentional per IMP-87 honesty gate and surfaces in u8). Drift between final.html and slot_payload = render pipeline disconnect. on-disk final.html size_bytes MUST equal step13's reported final_html_size_bytes (byte parity = no truncation / no double-write race).",
  "01": {
    "step13_status": "done",
    "step13_pipeline_path_connected": true,
    "render_inputs_zones_count": 2,
    "render_inputs_layout_preset": "horizontal-2",
    "render_inputs_slide_title_nonempty": true,
    "render_inputs_slide_footer_nonempty": true,
    "html_title_matches_render_input": true,
    "html_slide_root_count": 1,
    "html_slide_footer_present": true,
    "html_zone_count": 2,
    "html_zone_topology": [
      {"position": "top", "template_id": "bim_dx_comparison_table"},
      {"position": "bottom", "template_id": "construction_bim_three_usage"}
    ],
    "final_html_size_matches_step13_reported": true
  },
  "02": {
    "step13_status": "done",
    "step13_pipeline_path_connected": true,
    "render_inputs_zones_count": 2,
    "render_inputs_layout_preset": "horizontal-2",
    "render_inputs_slide_title_nonempty": true,
    "render_inputs_slide_footer_nonempty": true,
    "html_title_matches_render_input": true,
    "html_slide_root_count": 1,
    "html_slide_footer_present": true,
    "html_zone_count": 2,
    "html_zone_topology": [
      {"position": "top", "template_id": "construction_goals_three_circle_intersection"},
      {"position": "bottom", "template_id": "__empty__"}
    ],
    "final_html_size_matches_step13_reported": true
  },
  "03": {
    "step13_status": "done",
    "step13_pipeline_path_connected": true,
    "render_inputs_zones_count": 2,
    "render_inputs_layout_preset": "vertical-2",
    "render_inputs_slide_title_nonempty": true,
    "render_inputs_slide_footer_nonempty": true,
    "html_title_matches_render_input": true,
    "html_slide_root_count": 1,
    "html_slide_footer_present": true,
    "html_zone_count": 2,
    "html_zone_topology": [
      {"position": "left", "template_id": "three_parallel_requirements"},
      {"position": "right", "template_id": "process_product_two_way"}
    ],
    "final_html_size_matches_step13_reported": true
  },
  "04": {
    "step13_status": "done",
    "step13_pipeline_path_connected": true,
    "render_inputs_zones_count": 3,
    "render_inputs_layout_preset": "top-1-bottom-2",
    "render_inputs_slide_title_nonempty": true,
    "render_inputs_slide_footer_nonempty": true,
    "html_title_matches_render_input": true,
    "html_slide_root_count": 1,
    "html_slide_footer_present": true,
    "html_zone_count": 3,
    "html_zone_topology": [
      {"position": "top", "template_id": "bim_issues_quadrant_four"},
      {"position": "bottom-left", "template_id": "__empty__"},
      {"position": "bottom-right", "template_id": "__empty__"}
    ],
    "final_html_size_matches_step13_reported": true
  },
  "05": {
    "step13_status": "done",
    "step13_pipeline_path_connected": true,
    "render_inputs_zones_count": 1,
    "render_inputs_layout_preset": "single",
    "render_inputs_slide_title_nonempty": true,
    "render_inputs_slide_footer_nonempty": true,
    "html_title_matches_render_input": true,
    "html_slide_root_count": 1,
    "html_slide_footer_present": true,
    "html_zone_count": 1,
    "html_zone_topology": [
      {"position": "primary", "template_id": "__empty__"}
    ],
    "final_html_size_matches_step13_reported": true
  }
}