feat : widget notation étoiles + admin onglet flux RSS (v1.6.22)

- post_view.php : widget ★ 1-5 étoiles pour les connectés, moyenne + nb votes pour tous (#13)
- admin : onglet /admin/flux liste tous les flux rss_feeds avec suppression (#87)
- case 'admin_delete_feed' : suppression admin d'un flux sans contrainte email (#87)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

templates/post_view.php

@@ -261,6 +261,37 @@ $hasSources     = (!empty($externalLinks) || !empty($files))
     </div>
 </div>
 
+<?php if (($ratingStats['count'] ?? 0) > 0 || isLoggedIn()): ?>
+<div class="d-flex align-items-center flex-wrap gap-3 my-3 py-2 border-top small">
+    <span class="text-muted">Note :</span>
+    <?php if (($ratingStats['avg'] ?? null) !== null): ?>
+    <span>
+        <strong><?= number_format((float)$ratingStats['avg'], 1) ?></strong>/5
+        <span class="text-muted">(<?= (int)$ratingStats['count'] ?> vote<?= (int)$ratingStats['count'] > 1 ? 's' : '' ?>)</span>
+    </span>
+    <?php else: ?>
+    <span class="text-muted">Pas encore noté</span>
+    <?php endif; ?>
+    <?php if (isLoggedIn()): ?>
+    <form method="POST" action="/?action=rate" class="d-flex align-items-center gap-1 mb-0">
+        <input type="hidden" name="uuid" value="<?= htmlspecialchars($article['uuid']) ?>">
+        <?php for ($_s = 1; $_s <= 5; $_s++): ?>
+        <button type="submit" name="rating" value="<?= $_s ?>"
+                class="btn btn-link p-0 lh-1 text-decoration-none<?= (($userRating ?? 0) >= $_s) ? ' text-warning' : ' text-muted' ?>"
+                title="<?= $_s ?> étoile<?= $_s > 1 ? 's' : '' ?>">
+            <?= (($userRating ?? 0) >= $_s) ? '★' : '☆' ?>
+        </button>
+        <?php endfor; ?>
+        <?php if (($userRating ?? null) !== null): ?>
+        <span class="text-muted ms-1">(votre note)</span>
+        <?php endif; ?>
+    </form>
+    <?php else: ?>
+    <span class="text-muted fst-italic">Connectez-vous pour noter</span>
+    <?php endif; ?>
+</div>
+<?php endif; ?>
+
 <?php if ($article['published'] ?? false): ?>
 <?php
 $_shareUrl   = rtrim(defined('APP_URL') ? APP_URL : '', '/') . '/post/' . rawurlencode($article['slug'] ?? '');