Whitepaper v1.8: pilot figures and BHCT roles

Whitepaper v1.8 and website guidance update

Made Stage 1 pilot reward, catalog and budget tables and exclusions independent sections. Identified price relationships and circulation examples as the ECO-0002 proposal frozen for this edition and standardized annual total reward payout cap terminology. Operating tables, figures and current partnership and feature status are retained. The token page uses the same five role titles and order as the whitepaper. The home page illustrates contribution review, separate BHCT rewards and service choice as a design example, with links to operator and partnership information, security and program materials. Integration, rewards and service use remain subject to their published preparation and design status. Design examples and proposed capacities do not establish a service launch, confirmed partnership, secured supply or actual payout and usage results.