- Add test_page_json_with_page_labels_roman_numerals: verifies page_label
serialization with roman numeral values (i, ii, iii, etc)
- Add test_page_json_without_page_labels_absent: verifies page_label is
absent (null) when PDF has no /PageLabels
- Add test_page_json_page_index_and_page_number_both_present: verifies
both page_index and page_number are always present and page_number = page_index + 1
- Add test_page_json_roundtrip_with_all_fields: verifies full roundtrip
serde preservation of all PageJson fields
- Update docs/schema/v1.0/pdftract.schema.json PageResult definition:
- Add page_number field (1-based, = page_index + 1)
- Add page_label field (optional, from /PageLabels number tree)
- Add width and height fields (page geometry in points)
- Add rotation field (0, 90, 180, 270 degrees)
- Add type field with enum: text, scanned, mixed, broken_vector, blank, figure_only
- Update required fields to include all page-level fields
Acceptance criteria:
✅ Page serializes with both page_index AND page_number
✅ PDF with /PageLabels [{S: "r"}] produces page_label "i", "ii", "iii" etc
✅ PDF without /PageLabels -> page_label absent
✅ JSON Schema enum for page_type includes all values
✅ Roundtrip serde Page test passes
Closes: pdftract-4c8qu
90d1b9a83d