{
  "advisory": "PUBLIC BETA — ADVISORY ONLY. Not for survey deliverables. Registered surveyor confirmation required.",
  "note": "SYNTHETIC DEMO DATA — fictional evidence items, not a real project. Safe to share.",
  "copyright": "© 2026 SurveyMarkup — synthetic demo data for evaluation. Public beta advisory use only. Not for survey deliverables.",
  "summary": { "total": 4, "linked": 1, "unlinked": 1, "needs_review": 1, "missing": 1, "measurements": 2 },
  "items": [
    {
      "source_file_name": "demo-survey-report.pdf",
      "page_number": 4,
      "annotation_id": "ANN-001",
      "markup_type": "measurement",
      "measured_value": 0.036,
      "units": "m",
      "related_finding_id": "QA-CLOSURE-05",
      "confidence": "high",
      "reviewer_note": "Loop 5 closure highlighted on the closure table; matches the QA finding.",
      "evidence_status": "linked",
      "advisory_level": "UNVERIFIED",
      "reviewer_name": "Demo Reviewer"
    },
    {
      "source_file_name": "demo-survey-report.pdf",
      "page_number": 2,
      "annotation_id": "ANN-002",
      "markup_type": "highlight",
      "measured_value": null,
      "units": null,
      "related_finding_id": null,
      "confidence": "medium",
      "reviewer_note": "Datum note circled but not yet tied to a finding.",
      "evidence_status": "unlinked",
      "advisory_level": "ADVISORY"
    },
    {
      "source_file_name": "demo-survey-report.pdf",
      "page_number": 7,
      "annotation_id": "ANN-003",
      "markup_type": "callout",
      "measured_value": 0.006,
      "units": "m",
      "related_finding_id": "QA-F1F2-3348",
      "confidence": "low",
      "reviewer_note": "F1/F2 mismatch callout — needs a second look at the source observation.",
      "evidence_status": "needs_review",
      "advisory_level": "NEEDS REVIEW"
    },
    {
      "source_file_name": "demo-survey-report.pdf",
      "page_number": null,
      "annotation_id": "ANN-004",
      "markup_type": "note",
      "measured_value": null,
      "units": null,
      "related_finding_id": "QA-FEATURECODE-ZZ",
      "confidence": "unknown",
      "reviewer_note": null,
      "evidence_status": "missing",
      "advisory_level": "NEEDS REVIEW"
    }
  ]
}