feat(upload): Add option to only upload missing documents

[google-labs-jules]

This change introduces a new feature to the ndi.cloud.upload.uploadDocumentCollection function. A new optional argument, onlyUploadMissing (defaulting to true), has been added. When active, this feature prevents the re-upload of documents that already exist in the remote dataset.

The function now performs the following steps:

1. Checks if the onlyUploadMissing option is enabled.
2. If so, it calls ndi.cloud.api.documents.listDatasetDocumentsAll to retrieve a list of all document summaries from the remote dataset.
3. It then compares the local document list with the remote list and filters out any documents that already exist.
4. The upload process then continues only with the documents that are not present on the remote.
5. If all documents are filtered out (meaning no new documents to upload), the function returns early with a success status.

This enhancement improves the efficiency of the document upload process by avoiding redundant data transfer.

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PR created automatically by Jules for task 16961829823943544003

[google-labs-jules]

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[stevevanhooser]

looks good, thanks