Annotate catalog reference with [cite: 1] markers across table docs and lists, and condense several sections for clarity. Removed the BETA notice and large compatibility tables, simplified the compatibility matrix and data flow notes, updated the Reference Data blurb to reference the SQL Version 2 dataset, and cleaned up the See Also entries. Overall cleanup/refactor of readme.md for brevity and source attribution.
Add a prominent BETA warning to the README, clarify that the catalog is a beta release (not production-ready) while still compatible with Nitro-V3 and Nitro_Render_V3, and adjust wording to set expectations about ongoing schema and feature changes. Also fix the missing newline at end of file for the final link.
Replace previous EpicNabbo v2 development README with a comprehensive Catalog Database Reference. The new document details core tables (items_base, catalog_pages, catalog_items), additional catalog tables, full column schemas, compatibility with Arcturus emulator, Nitro-V3 client and Nitro_Render_V3 renderer, schema differences, data flow diagram, and reference counts from FullDatabase.sql. Removes the prior development warning/marketing content and provides actionable technical documentation and links to relevant files for developers.