feat(swimming): add discipline dropdown filter to player assignment page

The assignment page now shows a dropdown to select which sport's programs/groups
to display. Defaults to Swimming but allows switching to any active discipline.
Groups are filtered by the selected discipline and show their program names.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Modules/SportsActivity/Controllers/Swimming/SwimmingAssignmentController.php

@@ -102,17 +102,25 @@ class SwimmingAssignmentController extends Controller
             return $this->redirect('/sa/swimming/register')->withError('يجب رفع الشهادة الطبية أولاً');
         }
 
+        $selectedDiscipline = (int) ($request->get('discipline_id', 0) ?: $disciplineId);
+
         $groups = $db->select("
             SELECT g.id, g.name_ar, g.current_count, g.min_age, g.max_age,
                    p.name_ar as program_name, p.max_capacity, p.monthly_fee_member, p.monthly_fee_nonmember,
-                   p.age_from, p.age_to,
-                   c.full_name_ar as coach_name
+                   p.age_from, p.age_to, p.id as program_id,
+                   c.full_name_ar as coach_name,
+                   d.name_ar as discipline_name
             FROM sa_groups g
             INNER JOIN sa_programs p ON p.id = g.program_id
+            INNER JOIN sa_disciplines d ON d.id = p.discipline_id
             LEFT JOIN sa_coaches c ON c.id = g.coach_id
             WHERE p.discipline_id = ? AND g.status = 'active' AND g.is_archived = 0
             ORDER BY p.name_ar ASC, g.name_ar ASC
-        ", [$disciplineId]);
+        ", [$selectedDiscipline]);
+
+        $disciplines = $db->select(
+            "SELECT id, name_ar FROM sa_disciplines WHERE is_active = 1 AND is_archived = 0 ORDER BY name_ar"
+        );
 
         $playerAge = null;
         if (!empty($player['date_of_birth'])) {
@@ -123,13 +131,15 @@ class SwimmingAssignmentController extends Controller
         }
 
         return $this->view('SportsActivity.Views.swimming.assign', [
-            'players'      => [],
-            'player'       => $player,
-            'playerId'     => $playerId,
-            'playerAge'    => $playerAge,
-            'groups'       => $groups,
-            'mode'         => 'assign',
-            'disciplineId' => $disciplineId,
+            'players'             => [],
+            'player'              => $player,
+            'playerId'            => $playerId,
+            'playerAge'           => $playerAge,
+            'groups'              => $groups,
+            'mode'                => 'assign',
+            'disciplineId'        => $disciplineId,
+            'selectedDiscipline'  => $selectedDiscipline,
+            'disciplines'         => $disciplines,
         ]);
     }
 

app/Modules/SportsActivity/Views/swimming/assign.php

@@ -118,13 +118,34 @@ if ($done): ?>
     </div>
 </div>
 
+<!-- Discipline Filter -->
+<?php if (!empty($disciplines)): ?>
+<div class="card" style="margin-bottom:16px;">
+    <div style="padding:14px 16px;display:flex;align-items:center;gap:12px;">
+        <label style="font-size:13px;font-weight:700;white-space:nowrap;"><i data-lucide="filter" style="width:14px;height:14px;vertical-align:middle;margin-left:4px;"></i>النشاط الرياضي:</label>
+        <select id="disciplineFilter" onchange="filterByDiscipline(this.value)" style="flex:1;padding:8px 12px;border:1px solid #D1D5DB;border-radius:8px;font-size:13px;">
+            <?php foreach ($disciplines as $d): ?>
+            <option value="<?= (int) $d['id'] ?>" <?= (int) $d['id'] === ($selectedDiscipline ?? 0) ? 'selected' : '' ?>><?= e($d['name_ar']) ?></option>
+            <?php endforeach; ?>
+        </select>
+    </div>
+</div>
+<script>
+function filterByDiscipline(id) {
+    var url = new URL(window.location.href);
+    url.searchParams.set('discipline_id', id);
+    window.location.href = url.toString();
+}
+</script>
+<?php endif; ?>
+
 <!-- Groups Selection -->
 <div class="card">
     <div style="padding:14px 16px;border-bottom:1px solid #E5E7EB;">
         <span style="font-weight:700;font-size:14px;"><i data-lucide="users" style="width:16px;height:16px;vertical-align:middle;margin-left:6px;"></i>اختر المجموعة</span>
     </div>
     <?php if (empty($groups)): ?>
-    <div style="padding:30px;text-align:center;color:#9CA3AF;font-size:13px;">لا توجد مجموعات سباحة نشطة</div>
+    <div style="padding:30px;text-align:center;color:#9CA3AF;font-size:13px;">لا توجد مجموعات نشطة لهذا النشاط الرياضي</div>
     <?php else: ?>
     <div style="padding:16px;">
         <?php