feat: impact-media page type with OG scraping and cache

- Add impact-media blueprint (entries field + linked investigation)
- Add minimal impact-media template
- Refactor card-open-graph snippet: accepts $url param, Kirby cache (6h TTL), decode HTML entities, empty alt on images
- Update impacts.yml to allow impact-media pages
- Render impact-media in investigation aside with dynamic count + details/summary
- Add OG cache config in config.php
- CSS formatting fixes (body, card-block-small, category)

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

site/templates/impact-media.php

@@ -0,0 +1,47 @@
+<?php snippet('header') ?>
+
+<main class="main__single">
+
+<header class="page__header">
+    <p class="page__type">Impact</p>
+    <p class="page__category">Médiatique</p>
+    <h2 class="page__title"><?= $page->title()->esc() ?></h2>
+</header>
+
+<?php
+$entries = $page->entries()->toEntries();
+$investigation = $page->linkedInvestigation()->toPages()->first();
+?>
+
+<?php if ($entries->isNotEmpty()): ?>
+<div class="page__content">
+    <?php foreach ($entries as $entry): ?>
+        <?php snippet('card-open-graph', ['url' => $entry->value()]) ?>
+    <?php endforeach ?>
+</div>
+<?php endif ?>
+
+<?php if ($investigation): ?>
+<aside class="page__aside" id="related-investigations">
+    <h3 class="aside__title">Enquête liée</h3>
+
+    <article class="card--article-small">
+        <?php if ($cover = $investigation->cover()->toFile()): ?>
+        <figure>
+            <img src="<?= $cover->url() ?>" alt="<?= $investigation->title()->esc() ?>">
+        </figure>
+        <?php endif ?>
+        <div class="content">
+            <p class="type">Enquête</p>
+            <h4 class="title"><a href="<?= $investigation->url() ?>"><?= $investigation->title()->esc() ?></a></h4>
+        </div>
+        <button class="btn--go-to"><a href="<?= $investigation->url() ?>"><?= svg('assets/icons/arrow-left.svg') ?></a></button>
+        <a class="link-block" href="<?= $investigation->url() ?>" aria-hidden="true"></a>
+    </article>
+</aside>
+<?php endif ?>
+
+</main>
+
+<?php snippet('bottom-bar') ?>
+<?php snippet('footer') ?>

site/templates/investigation.php

@@ -303,19 +303,6 @@ $dateLocale = substr(is_array($locale) ? reset($locale) : $locale, 0, 5);
     </div>
 
 
-        <!-- <div class="card--block-small" data-impact-type="media">
-   
-        <p class="category">Médiatique</p>
-        <div class="content">
-            <p>12 articles et reprises</p>
-            <p>1.5M de vues cumulées</p>
-        </div>
-        <details class="open-graph__details">
-        <summary><p class="summary-inner">Détails <span class="arrow-details"><?= svg('assets/icons/arrow-details.svg') ?></span><p></summary>
-                <?php snippet('card-open-graph') ?>
-        </details>
-    </div> -->
-
 
 <?php
 $resourcesParent = site()->find('ressources');
@@ -361,6 +348,9 @@ $resources = $resourcesParent ? $resourcesParent->children()->listed()->filter(f
 <?php
 $impactsParent = site()->find('impacts');
 $impacts = $impactsParent ? $impactsParent->children()->listed()->filter(function($impact) use ($page) {
+    if ($impact->intendedTemplate()->name() === 'impact-media') {
+        return $impact->linkedInvestigation()->toPages()->has($page);
+    }
     return $impact->linkedInvestigations()->toPages()->has($page);
 }) : null;
 ?>
@@ -370,6 +360,23 @@ $impacts = $impactsParent ? $impactsParent->children()->listed()->filter(functio
     <h3 class="aside__title"><?= t('impacts.title') ?></h3>
 
    <?php foreach ($impacts as $impact): ?>
+    <?php if ($impact->intendedTemplate()->name() === 'impact-media'): ?>
+        <?php $entries = $impact->entries()->toEntries(); ?>
+        <div class="card--block-small" data-impact-type="media">
+            <p class="type">Médiatique</p>
+            <div class="content">
+                <p><?= $entries->count() ?> article<?= $entries->count() > 1 ? 's' : '' ?> et reprise<?= $entries->count() > 1 ? 's' : '' ?></p>
+            </div>
+            <?php if ($entries->isNotEmpty()): ?>
+            <details class="open-graph__details">
+                <summary><p class="summary-inner">Détails <span class="arrow-details"><?= svg('assets/icons/arrow-details.svg') ?></span></p></summary>
+                <?php foreach ($entries as $entry): ?>
+                    <?php snippet('card-open-graph', ['url' => $entry->value()]) ?>
+                <?php endforeach ?>
+            </details>
+            <?php endif ?>
+        </div>
+    <?php else: ?>
     <div class="card--block-small has-link">
         <div class="group-top">
             <p class="type"><?= t('impact.type') ?></p>
@@ -394,6 +401,7 @@ $impacts = $impactsParent ? $impactsParent->children()->listed()->filter(functio
 
         <a class="link-block" href="<?= $impact->url() ?>" aria-hidden="true"></a>
     </div>
+    <?php endif ?>
     <?php endforeach ?>
 
 </aside>