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.

templates/sites/seo.php

@@ -15,7 +15,7 @@
 
 <div class="row g-4">
     <div class="col-lg-8">
-        <div class="card h-100">
+        <div class="card">
             <div class="card-header d-flex justify-content-between align-items-center">
                 <h5 class="mb-0">Widocznosc SEO (SEMSTORM)</h5>
                 <form method="post" action="/sites/<?= (int) $site['id'] ?>/seo/sync" data-confirm="Pobrac i nadpisac dane SEO dla biezacego miesiaca?">
@@ -25,7 +25,26 @@
                 </form>
             </div>
             <div class="card-body">
-                <canvas id="seoVisibilityChart" height="320"></canvas>
+                <div class="position-relative" style="height: 340px;">
+                    <canvas id="seoVisibilityChart"></canvas>
+                </div>
+            </div>
+        </div>
+
+        <div class="card mt-4 border-secondary-subtle">
+            <div class="card-header d-flex justify-content-between align-items-center">
+                <h6 class="mb-0">Zaindeksowane strony (DataForSEO)</h6>
+            </div>
+            <div class="card-body">
+                <?php if (!empty($seoLatest)): ?>
+                    <div class="display-6 fw-semibold mb-1"><?= (int) ($seoLatest['indexed_pages'] ?? 0) ?></div>
+                    <p class="small text-muted mb-0">
+                        Ostatnia aktualizacja miesieczna:
+                        <?= htmlspecialchars(date('m.Y', strtotime((string) $seoLatest['metric_month']))) ?>
+                    </p>
+                <?php else: ?>
+                    <p class="text-muted small mb-0">Brak danych o indeksacji. Uzyj przycisku "Synchronizuj teraz".</p>
+                <?php endif; ?>
             </div>
         </div>
     </div>
@@ -64,6 +83,7 @@
                         </div>
                     </div>
                     <p class="small mb-2"><strong>Ruch:</strong> <?= (int) $seoLatest['traffic'] ?></p>
+                    <p class="small mb-2"><strong>Zaindeksowane strony:</strong> <?= (int) ($seoLatest['indexed_pages'] ?? 0) ?></p>
                     <p class="small text-muted mb-0">
                         Ostatni zapis: <?= htmlspecialchars(date('d.m.Y H:i', strtotime((string) $seoLatest['updated_at']))) ?><br>
                         Miesiac: <?= htmlspecialchars(date('m.Y', strtotime((string) $seoLatest['metric_month']))) ?>