refactor: rename SolaceScanScout to Solace and update related configurations

- Updated branding from "SolaceScanScout" to "Solace" across various files including deployment scripts, API responses, and documentation.
- Changed default base URL for Playwright tests and updated security headers to reflect the new branding.
- Enhanced README and API documentation to include new authentication endpoints and product access details.

This refactor aligns the project branding and improves clarity in the API documentation.

frontend/FRONTEND_REVIEW.md

@@ -133,7 +133,7 @@ The frontend has two delivery paths:
 ## 6. Files Reviewed
 
 - `public/index.html` – full read and grep for escapeHtml, innerHTML, fetch, navigation, wallet.
-- `src/app/layout.tsx`, `src/app/page.tsx`, `src/app/wallet/page.tsx`
+- Historical note: the reviewed home and wallet surfaces were later consolidated into the Pages Router and now live under `src/pages` with shared components in `src/components`.
 - `src/pages/_app.tsx`, `src/pages/blocks/index.tsx`, `src/pages/blocks/[number].tsx`, `src/pages/transactions/index.tsx`, `src/pages/transactions/[hash].tsx`, `src/pages/addresses/[address].tsx`, `src/pages/search/index.tsx`
 - `src/components/common/Card.tsx`, `Button.tsx`, `Table.tsx`
 - `src/components/blockchain/Address.tsx`, `src/components/wallet/AddToMetaMask.tsx`