feat: Integrate DataForSEO for indexed pages tracking

- Updated CRON documentation to include DataForSEO metrics synchronization.
- Enhanced SettingsController to manage DataForSEO API credentials and settings.
- Modified SiteController to handle DataForSEO domain input.
- Updated Site model to accommodate DataForSEO data handling.
- Added methods in SiteSeoMetric model for DataForSEO data retrieval and validation.
- Implemented SiteSeoSyncService to synchronize SEO metrics from both SEMSTORM and DataForSEO.
- Enhanced dashboard templates to display indexed pages data.
- Updated settings and site creation/edit templates to include DataForSEO fields.
- Created migration for adding DataForSEO related columns in the database.
- Developed DataForSeoService to fetch indexed pages count from DataForSEO API.

src/Models/Site.php

@@ -39,7 +39,12 @@ class Site extends Model
                     ON m.site_id = s.id
                     AND m.metric_month = :metric_month
                 WHERE s.is_active = 1
-                  AND m.id IS NULL
+                  AND (
+                    m.id IS NULL
+                    OR m.source_payload IS NULL
+                    OR m.source_payload NOT LIKE '%\"dataforseo\"%'
+                    OR m.source_payload LIKE '%\"dataforseo\":null%'
+                  )
                 ORDER BY s.id ASC
                 LIMIT 1";