Blume platform capabilities

The site now uses Blume for custom portals, documentation, search and agent discovery.

Added owner and dashboard merchant portals, local documentation search, native references, generated agent documentation, PDF and EPUB export, narration, locale and version switchers. Services now presents merchant offers and a curated app directory. Merchants publish free or paid offers; account access checks use verified agent identities. Provider API-key imports and inbox/repository command wrappers are removed.