Separate accuracy and traffic metadata

Refine tags around physical longitudinal practice

Replace speculative tags with archive descriptors

Make dataset card semantics match live Viewer (#3)

Prepare v0.2 metadata and documentation release (#2)

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Update README for Series_9x12 relocation

Update README canonical count to 323

Update README for canonical collection structure

Update provenance determination count

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Rebuild canonical metadata index and document legacy sources

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Upload dataset

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