repertoire: remove matched-first sorting and faded/disabled system for filter entries

Remove the system that sorted valid (matched) filter entries to the top and
faded/disabled unmatched ones when any filter was active. Entries now stay in
their natural alphabetical/numeric order regardless of selection state.

- Drop usort calls that reordered entries by matched status
- Simplify repFilterEntry: remove anyActive and colHasMatch params
- Remove colHasMatches computation
- Remove rep-entry--faded CSS rule
- All filter buttons remain clickable at all times

app/templates/partials/repertoire-index.php

@@ -62,22 +62,18 @@ function repFilterEntry(
     array $item,
     string $dim,
     array $activeSets,
-    bool $anyActive,
-    bool $colHasMatch,
     string $hx,
 ): void {
     $val      = (string)$item['value'];
     $isActive = in_array($val, $activeSets[$dim], true);
-    $isFaded  = $anyActive && $colHasMatch && !$item['matched'] && !$isActive;
     $cls      = 'rep-entry'
-              . ($isActive ? ' rep-entry--selected' : '')
-              . ($isFaded  ? ' rep-entry--faded'    : '');
+              . ($isActive ? ' rep-entry--selected' : '');
     $url      = repToggleUrl($activeSets, $dim, $val);
 ?>
             <li>
                 <button type="button" class="<?= $cls ?>"
                         aria-pressed="<?= $isActive ? 'true' : 'false' ?>"
-                        <?= $isFaded ? 'disabled' : "hx-get=\"" . htmlspecialchars($url) . "\" $hx" ?>>
+                        hx-get="<?= htmlspecialchars($url) ?>" <?= $hx ?>>
                     <?= htmlspecialchars($dim === 'ap' ? formatApDisplay($val) : $val) ?>
                 </button>
             </li>
@@ -87,10 +83,6 @@ function repFilterEntry(
 // ── Column definitions ──────────────────────────────────────────────────────
 $hx = 'hx-target="#repertoire-index" hx-swap="outerHTML" hx-push-url="true" hx-indicator="#rep-indicator"';
 
-$anyActive = !empty($activeSets['years']) || !empty($activeSets['ap'])
-          || !empty($activeSets['or'])    || !empty($activeSets['fi'])
-          || !empty($activeSets['kw']);
-
 $filterColumns = [
     ['dataKey' => 'years',          'dim' => 'years', 'heading' => 'Années'],
     ['dataKey' => 'ap_programs',    'dim' => 'ap',    'heading' => 'Ateliers Pluridisciplinaires'],
@@ -99,29 +91,10 @@ $filterColumns = [
     ['dataKey' => 'keywords',       'dim' => 'kw',    'heading' => 'Mots-clés'],
 ];
 
-$colHasMatches = [];
-foreach ($filterColumns as $col) {
-    $colHasMatches[$col['dim']] = !empty(array_filter(
-        $repData[$col['dataKey']],
-        fn($i) => $i['matched']
-    ));
-}
-
 ?>
 <div id="repertoire-index" class="repertoire-index">
 
 <?php
-// Sort filter columns: matched first (alpha), then unmatched (alpha) — keeps
-// viable entries at the top so users don't have to scroll past faded ones.
-$sortMatchedFirst = fn($a, $b) =>
-    ($b['matched'] <=> $a['matched']) ?: strcasecmp($a['value'], $b['value']);
-usort($repData['years'], fn($a, $b) =>
-    ($b['matched'] <=> $a['matched']) ?: ($b['value'] <=> $a['value']));
-usort($repData['ap_programs'],    $sortMatchedFirst);
-usort($repData['orientations'],   $sortMatchedFirst);
-usort($repData['finality_types'], $sortMatchedFirst);
-usort($repData['keywords'],       $sortMatchedFirst);
-
 // Render filter columns in the correct left-to-right order.
 // Students column (non-filter) is inserted between keywords and AP/or/fi/years.
 $renderOrder = ['years', 'ap', 'or', 'fi', 'students', 'kw'];
@@ -184,7 +157,7 @@ foreach ($renderOrder as $colKey):
         <div class="rep-accordion__panel">
         <ul>
 <?php   foreach ($repData[$col['dataKey']] as $item):
-            repFilterEntry($item, $col['dim'], $activeSets, $anyActive, $colHasMatches[$col['dim']], $hx);
+            repFilterEntry($item, $col['dim'], $activeSets, $hx);
         endforeach; ?>
         </ul>
         </div>