add NEWS.md

Author: divine7022

NEWS.md

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+# betydata (development version)
+
+# betydata 0.1.0
+
+## Initial Release
+
+* First public release of betydata
+* Exported datasets from BETYdb snapshot (2026-02-10):
+  - `traitsview`: 43,532 records (traits + yields view)
+  - 15 support tables: species, sites, variables, citations, pfts, priors, etc.
+* Data quality:
+  - Excludes [checked = -1] records (failed QA/QC)
+  - Public data only (`access_level >= 4`)
+* Formats:
+
+  - Primary: `.rda` files with xz compression
+  - Alternative: Parquet files in `inst/extdata/parquet/`
+* Metadata:
+  - Frictionless `datapackage.json` in `inst/metadata/`
+  - Full roxygen2 documentation for all datasets
+* Vignettes:
+  - `orientation`: Getting started guide
+  - `manuscript`: Reproduction of key GCB Bioenergy figures
+  - `sql-analogs`: Common SQL queries as dplyr equivalents
+  - `pfts-priors`: Working with PFTs and Bayesian priors
+* GitHub issue templates for data corrections and verification