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.

docs/ERROR_REPORT_AND_FIXES.md

@@ -300,7 +300,7 @@ Once the backend is running:
 ### Backend Logs
 
 The backend uses Go's standard `log` package. Logs will show:
-- Server startup: `Starting SolaceScanScout REST API server on :8080`
+- Server startup: `Starting SolaceScan REST API server on :8080`
 - Request logs: `GET /api/v2/stats 200 2.5ms`
 - Errors: Database connection errors, query failures, etc.
 
@@ -330,7 +330,7 @@ Expected response:
   },
   "chain_id": 138,
   "explorer": {
-    "name": "SolaceScanScout",
+    "name": "SolaceScan",
     "version": "1.0.0"
   }
 }
@@ -359,4 +359,3 @@ Expected response:
 ---
 
 **Next Steps**: Start the backend server and re-run the diagnostic script to verify all issues are resolved.
-