Updated the `_test_api_connectivity` method in `data_service.py` to include additional headers and enhanced logging. The method now attempts to ping a wallet-specific endpoint first, followed by a standard ping and a statsnap endpoint if necessary. Detailed error messages and a debug URL have been added for better troubleshooting, improving the overall robustness and clarity of the connectivity checks.
Updated `MiningDashboardService` in `data_service.py` to incorporate a new API from Ocean.xyz. Added base URL, connectivity test method, and new data-fetching methods. Existing methods modified to use the API when available, enhancing data retrieval efficiency. Improved error handling and logging, while retaining original web scraping methods as fallbacks.
