Add homepage block, reactive controls, i18n, and full-width layout

- Implement ModuleBlockInterface for tree/user homepage embedding
  with configurable individual and generation settings
- Make generation sliders reactive (auto-navigate on change)
- Persist generation counts when clicking between persons
- Expand chart to full viewport width and remaining height
- Add German and Dutch translations for all custom strings
- Pass translated labels to JS bio card tooltip via window.fullDiagramI18n
- Use webtrees core translation keys where available
- Increase default generations to 4, remove show siblings checkbox
- Expose Chart class globally for block instantiation

resources/views/modules/full-diagram/block-config.phtml

@@ -0,0 +1,81 @@
+<?php
+
+declare(strict_types=1);
+
+use Fisharebest\Webtrees\I18N;
+use Fisharebest\Webtrees\Individual;
+use Fisharebest\Webtrees\Tree;
+
+/**
+ * @var Individual|null $individual
+ * @var Tree            $tree
+ * @var int             $ancestor_generations
+ * @var int             $descendant_generations
+ * @var bool            $show_siblings
+ */
+?>
+
+<div class="row mb-3">
+    <label class="col-sm-3 col-form-label" for="xref">
+        <?= I18N::translate('Individual') ?>
+    </label>
+    <div class="col-sm-9">
+        <?= view('components/select-individual', [
+            'name'       => 'xref',
+            'individual' => $individual,
+            'tree'       => $tree,
+        ]) ?>
+    </div>
+</div>
+
+<div class="row mb-3">
+    <label class="col-sm-3 col-form-label" for="ancestor_generations">
+        <?= I18N::translate('Generations of ancestors') ?>
+    </label>
+    <div class="col-sm-9">
+        <input
+            type="number"
+            class="form-control"
+            id="ancestor_generations"
+            name="ancestor_generations"
+            min="1"
+            max="10"
+            value="<?= $ancestor_generations ?>"
+        >
+    </div>
+</div>
+
+<div class="row mb-3">
+    <label class="col-sm-3 col-form-label" for="descendant_generations">
+        <?= I18N::translate('Generations of descendants') ?>
+    </label>
+    <div class="col-sm-9">
+        <input
+            type="number"
+            class="form-control"
+            id="descendant_generations"
+            name="descendant_generations"
+            min="1"
+            max="10"
+            value="<?= $descendant_generations ?>"
+        >
+    </div>
+</div>
+
+<div class="row mb-3">
+    <div class="col-sm-9 offset-sm-3">
+        <div class="form-check">
+            <input
+                type="checkbox"
+                class="form-check-input"
+                id="show_siblings"
+                name="show_siblings"
+                value="1"
+                <?= $show_siblings ? 'checked' : '' ?>
+            >
+            <label class="form-check-label" for="show_siblings">
+                <?= I18N::translate('Show siblings') ?>
+            </label>
+        </div>
+    </div>
+</div>

resources/views/modules/full-diagram/block.phtml

@@ -0,0 +1,74 @@
+<?php
+
+declare(strict_types=1);
+
+use Fisharebest\Webtrees\I18N;
+use Fisharebest\Webtrees\Individual;
+use Fisharebest\Webtrees\Module\ModuleChartInterface;
+use Fisharebest\Webtrees\Tree;
+
+/**
+ * @var ModuleChartInterface $module
+ * @var Individual          $individual
+ * @var Tree                $tree
+ * @var string              $tree_data
+ * @var string              $javascript_url
+ * @var string              $stylesheet_url
+ * @var int                 $block_id
+ * @var int                 $ancestor_generations
+ * @var int                 $descendant_generations
+ * @var bool                $show_siblings
+ */
+
+$containerId = 'full-diagram-block-' . $block_id;
+?>
+
+<link rel="stylesheet" href="<?= e($stylesheet_url) ?>">
+
+<div id="<?= $containerId ?>" class="full-diagram-container full-diagram-block wt-chart" data-tree-name="<?= e($tree->name()) ?>" style="height:450px;">
+    <div class="full-diagram-chart"></div>
+</div>
+
+<script>
+(function() {
+    if (!window.fullDiagramI18n) {
+        window.fullDiagramI18n = <?= json_encode([
+            'Born'            => I18N::translate('Born'),
+            'Baptism'         => I18N::translate('Baptism'),
+            'Marriage'        => I18N::translate('Marriage'),
+            'Died'            => I18N::translate('Died'),
+            'Occupation'      => I18N::translate('Occupation'),
+            'Residence'       => I18N::translate('Residence'),
+            'View profile'    => I18N::translate('View profile'),
+            'Died at age %s'  => I18N::translate('Died at age %s', '__AGE__'),
+            'Deceased'        => I18N::translate('Deceased'),
+            'Age ~%s'         => I18N::translate('Age ~%s', '__AGE__'),
+        ], JSON_THROW_ON_ERROR) ?>;
+    }
+    var data = <?= $tree_data ?>;
+    var baseUrl = <?= json_encode(route($module::ROUTE_NAME, [
+        'tree' => $tree->name(),
+        'xref' => '__XREF__',
+        'ancestor_generations' => $ancestor_generations,
+        'descendant_generations' => $descendant_generations,
+        'show_siblings' => $show_siblings ? '1' : '0',
+    ]), JSON_THROW_ON_ERROR) ?>;
+
+    function initBlock() {
+        if (typeof window.FullDiagramChart === 'undefined') {
+            // JS not loaded yet, retry
+            setTimeout(initBlock, 100);
+            return;
+        }
+        var chart = new window.FullDiagramChart('#<?= $containerId ?>', data, baseUrl);
+        chart.render();
+    }
+
+    if (document.readyState === 'loading') {
+        document.addEventListener('DOMContentLoaded', initBlock);
+    } else {
+        initBlock();
+    }
+})();
+</script>
+<script src="<?= e($javascript_url) ?>"></script>

resources/views/modules/full-diagram/chart.phtml

@@ -2,6 +2,7 @@
 
 declare(strict_types=1);
 
+use Fisharebest\Webtrees\I18N;
 use Fisharebest\Webtrees\Individual;
 use Fisharebest\Webtrees\Module\ModuleChartInterface;
 use Fisharebest\Webtrees\Tree;
@@ -13,17 +14,50 @@ use Fisharebest\Webtrees\Tree;
  * @var string              $tree_data
  * @var string              $javascript_url
  * @var string              $stylesheet_url
+ * @var int                 $ancestor_generations
+ * @var int                 $descendant_generations
+ * @var bool                $show_siblings
  */
 ?>
 
 <link rel="stylesheet" href="<?= e($stylesheet_url) ?>">
 
-<div id="full-diagram-container" class="full-diagram-container wt-chart" data-tree-name="<?= e($tree->name()) ?>" style="width:100%;height:700px;">
+<div id="full-diagram-container" class="full-diagram-container wt-chart" data-tree-name="<?= e($tree->name()) ?>">
     <div class="full-diagram-chart"></div>
 </div>
 
 <script>
+(function() {
+    var el = document.getElementById('full-diagram-container');
+    function resize() {
+        var rect = el.getBoundingClientRect();
+        el.style.height = Math.max(400, window.innerHeight - rect.top - 16) + 'px';
+    }
+    resize();
+    window.addEventListener('resize', resize);
+})();
+</script>
+
+<script>
+    window.fullDiagramI18n = <?= json_encode([
+        'Born'            => I18N::translate('Born'),
+        'Baptism'         => I18N::translate('Baptism'),
+        'Marriage'        => I18N::translate('Marriage'),
+        'Died'            => I18N::translate('Died'),
+        'Occupation'      => I18N::translate('Occupation'),
+        'Residence'       => I18N::translate('Residence'),
+        'View profile'    => I18N::translate('View profile'),
+        'Died at age %s'  => I18N::translate('Died at age %s', '__AGE__'),
+        'Deceased'        => I18N::translate('Deceased'),
+        'Age ~%s'         => I18N::translate('Age ~%s', '__AGE__'),
+    ], JSON_THROW_ON_ERROR) ?>;
     window.fullDiagramData = <?= $tree_data ?>;
-    window.fullDiagramBaseUrl = <?= json_encode(route($module::ROUTE_NAME, ['tree' => $tree->name(), 'xref' => '__XREF__']), JSON_THROW_ON_ERROR) ?>;
+    window.fullDiagramBaseUrl = <?= json_encode(route($module::ROUTE_NAME, [
+        'tree' => $tree->name(),
+        'xref' => '__XREF__',
+        'ancestor_generations' => $ancestor_generations,
+        'descendant_generations' => $descendant_generations,
+        'show_siblings' => $show_siblings ? '1' : '0',
+    ]), JSON_THROW_ON_ERROR) ?>;
 </script>
 <script src="<?= e($javascript_url) ?>"></script>

resources/views/modules/full-diagram/page.phtml

@@ -35,73 +35,94 @@ use FullDiagram\Configuration;
 
 <h2 class="wt-page-title"><?= $title ?></h2>
 
-<form method="post" class="wt-page-options wt-page-options-chart d-print-none mb-3">
-    <?= csrf_field() ?>
-
+<div class="wt-page-options wt-page-options-chart d-print-none mb-3">
     <div class="row g-3 align-items-end">
         <div class="col-auto">
             <label for="ancestor_generations" class="form-label">
-                <?= I18N::translate('Ancestor generations') ?>
+                <?= I18N::translate('Generations of ancestors') ?>
             </label>
-            <input
-                type="range"
-                class="form-range"
-                id="ancestor_generations"
-                name="ancestor_generations"
-                min="<?= $min_generations ?>"
-                max="<?= $max_generations ?>"
-                value="<?= $ancestor_generations ?>"
-                oninput="document.getElementById('ancestor_gen_label').textContent = this.value"
-            >
-            <span id="ancestor_gen_label" class="badge bg-secondary"><?= $ancestor_generations ?></span>
-        </div>
-
-        <div class="col-auto">
-            <label for="descendant_generations" class="form-label">
-                <?= I18N::translate('Descendant generations') ?>
-            </label>
-            <input
-                type="range"
-                class="form-range"
-                id="descendant_generations"
-                name="descendant_generations"
-                min="<?= $min_generations ?>"
-                max="<?= $max_generations ?>"
-                value="<?= $descendant_generations ?>"
-                oninput="document.getElementById('descendant_gen_label').textContent = this.value"
-            >
-            <span id="descendant_gen_label" class="badge bg-secondary"><?= $descendant_generations ?></span>
-        </div>
-
-        <div class="col-auto">
-            <div class="form-check">
+            <div class="d-flex align-items-center gap-2">
                 <input
-                    type="checkbox"
-                    class="form-check-input"
-                    id="show_siblings"
-                    name="show_siblings"
-                    value="1"
-                    <?= $show_siblings ? 'checked' : '' ?>
+                    type="range"
+                    class="form-range"
+                    id="ancestor_generations"
+                    min="<?= $min_generations ?>"
+                    max="<?= $max_generations ?>"
+                    value="<?= $ancestor_generations ?>"
+                    style="width: 120px;"
                 >
-                <label class="form-check-label" for="show_siblings">
-                    <?= I18N::translate('Show siblings') ?>
-                </label>
+                <span id="ancestor_gen_label" class="badge bg-secondary"><?= $ancestor_generations ?></span>
             </div>
         </div>
 
         <div class="col-auto">
-            <button type="submit" class="btn btn-primary">
-                <?= I18N::translate('View') ?>
-            </button>
+            <label for="descendant_generations" class="form-label">
+                <?= I18N::translate('Generations of descendants') ?>
+            </label>
+            <div class="d-flex align-items-center gap-2">
+                <input
+                    type="range"
+                    class="form-range"
+                    id="descendant_generations"
+                    min="<?= $min_generations ?>"
+                    max="<?= $max_generations ?>"
+                    value="<?= $descendant_generations ?>"
+                    style="width: 120px;"
+                >
+                <span id="descendant_gen_label" class="badge bg-secondary"><?= $descendant_generations ?></span>
+            </div>
         </div>
+
     </div>
-</form>
+</div>
 
 <?= view($module->name() . '::modules/full-diagram/chart', [
-    'module'         => $module,
-    'individual'     => $individual,
-    'tree'           => $tree,
-    'tree_data'      => $tree_data,
-    'javascript_url' => $javascript_url,
-    'stylesheet_url' => $stylesheet_url,
+    'module'                 => $module,
+    'individual'             => $individual,
+    'tree'                   => $tree,
+    'tree_data'              => $tree_data,
+    'javascript_url'         => $javascript_url,
+    'stylesheet_url'         => $stylesheet_url,
+    'ancestor_generations'   => $ancestor_generations,
+    'descendant_generations' => $descendant_generations,
+    'show_siblings'          => $show_siblings,
 ]) ?>
+
+<script>
+(function() {
+    var baseChartUrl = <?= json_encode(route($module::ROUTE_NAME, [
+        'tree' => $tree->name(),
+        'xref' => $individual->xref(),
+    ]), JSON_THROW_ON_ERROR) ?>;
+
+    var timer = null;
+
+    function navigate() {
+        var ag = document.getElementById('ancestor_generations').value;
+        var dg = document.getElementById('descendant_generations').value;
+        var sep = baseChartUrl.indexOf('?') === -1 ? '?' : '&';
+        window.location.href = baseChartUrl + sep
+            + 'ancestor_generations=' + ag
+            + '&descendant_generations=' + dg
+            + '&show_siblings=1';
+    }
+
+    function scheduleNavigate() {
+        clearTimeout(timer);
+        timer = setTimeout(navigate, 400);
+    }
+
+    var ag = document.getElementById('ancestor_generations');
+    var dg = document.getElementById('descendant_generations');
+
+    ag.addEventListener('input', function() {
+        document.getElementById('ancestor_gen_label').textContent = this.value;
+    });
+    dg.addEventListener('input', function() {
+        document.getElementById('descendant_gen_label').textContent = this.value;
+    });
+
+    ag.addEventListener('change', scheduleNavigate);
+    dg.addEventListener('change', scheduleNavigate);
+})();
+</script>