Metadata

[Polkas]

Adds opt-in metadata capture when exporting gridifyClass objects.

New metadata argument on export_to() accepting "none" (default), "sidecar", or "embed", resolved via match.arg().
"sidecar" — writes .json next to the output with the set_cell() text values.
"embed" — embeds the JSON payload in the PDF /Title field (PDF only; skipped if the user supplied their own title).
"none" — disables both.
Project-wide default can be set via options(gridify.export.metadata = "sidecar"); resolution layered as explicit arg → option → "none", all funneled through resolve_export_metadata().
Works for single objects and lists (multi-page PDFs emit one merged JSON array).
Internal helpers in gridify-utils.R: gridify_metadata(), gridify_to_json() (thin jsonlite::toJSON wrapper), write_metadata_sidecar(), all @Keywords internal and unit-tested.
Adds jsonlite to Imports. Vignettes (simple_examples, multi_page_examples) and NEWS.md updated.
Fully backwards-compatible: default behaviour writes the same single file as before.Adds opt-in metadata capture when exporting gridifyClass objects.

New metadata argument on export_to() accepting "none" (default), "sidecar", or "embed", resolved via match.arg().
"sidecar" — writes .json next to the output with the set_cell() text values.
"embed" — embeds the JSON payload in the PDF /Title field (PDF only; skipped if the user supplied their own title).
"none" — disables both.
Project-wide default can be set via options(gridify.export.metadata = "sidecar"); resolution layered as explicit arg → option → "none", all funneled through resolve_export_metadata().
Works for single objects and lists (multi-page PDFs emit one merged JSON array).
Internal helpers in gridify-utils.R: gridify_metadata(), gridify_to_json() (thin jsonlite::toJSON wrapper), write_metadata_sidecar(), all @Keywords internal and unit-tested.
Adds jsonlite to Imports. Vignettes (simple_examples, multi_page_examples) and NEWS.md updated.
Fully backwards-compatible: default behaviour writes the same single file as before.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 98.55072% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 99.48%. Comparing base (45855f1) to head (940f0ae).

Files with missing lines	Patch %	Lines
R/gridify-methods.R	96.87%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
- Coverage   99.56%   99.48%   -0.09%     
==========================================
  Files           9        9              
  Lines         919      962      +43     
==========================================
+ Hits          915      957      +42     
- Misses          4        5       +1     

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