fix(sa): fix coach dropdown click bug and auto-create group on program creation

1. searchable-select.js: mouseover was calling renderList() which replaced
   innerHTML and destroyed the click target DOM node, making options unclickable.
   Now mouseover only toggles inline styles without re-rendering.

2. ProgramController: auto-creates a default group (code-G1) when a new program
   is created, using the first available coach for that discipline.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Modules/SportsActivity/Controllers/ProgramController.php

@@ -167,7 +167,40 @@ class ProgramController extends Controller
             'is_active'               => 1,
         ]);
 
-        return $this->redirect('/sa/programs/' . $program->id)->withSuccess('تم إضافة البرنامج بنجاح');
+        $db = App::getInstance()->db();
+        $coach = $db->selectOne(
+            "SELECT c.id FROM sa_coaches c
+             INNER JOIN sa_coach_disciplines cd ON cd.coach_id = c.id
+             WHERE cd.discipline_id = ? AND c.is_active = 1 AND c.is_archived = 0
+             LIMIT 1",
+            [$disciplineId]
+        );
+        if (!$coach) {
+            $coach = $db->selectOne("SELECT id FROM sa_coaches WHERE is_active = 1 AND is_archived = 0 LIMIT 1");
+        }
+
+        if ($coach) {
+            $groupCode = $code . '-G1';
+            $existing = $db->selectOne("SELECT id FROM sa_groups WHERE code = ?", [$groupCode]);
+            if (!$existing) {
+                $db->insert('sa_groups', [
+                    'code'          => $groupCode,
+                    'name_ar'       => $nameAr . ' - مجموعة 1',
+                    'name_en'       => $nameEn ? $nameEn . ' - Group 1' : null,
+                    'program_id'    => (int) $program->id,
+                    'coach_id'      => (int) $coach['id'],
+                    'min_capacity'  => $minCapacity,
+                    'max_capacity'  => $maxCapacity,
+                    'current_count' => 0,
+                    'is_full'       => 0,
+                    'status'        => 'active',
+                    'created_at'    => date('Y-m-d H:i:s'),
+                    'updated_at'    => date('Y-m-d H:i:s'),
+                ]);
+            }
+        }
+
+        return $this->redirect('/sa/programs/' . $program->id)->withSuccess('تم إضافة البرنامج بنجاح' . ($coach ? ' وتم إنشاء مجموعة افتراضية' : ''));
     }
 
     /**

public/assets/js/searchable-select.js

@@ -285,8 +285,13 @@ var SearchableSelect = (function() {
         self.list.addEventListener('mouseover', function(e) {
             var opt = e.target.closest('.ss-option');
             if (opt) {
-                self.highlightIndex = parseInt(opt.getAttribute('data-idx'), 10);
-                self.renderList();
+                var idx = parseInt(opt.getAttribute('data-idx'), 10);
+                if (idx !== self.highlightIndex) {
+                    var prev = self.list.querySelector('.ss-option[data-idx="' + self.highlightIndex + '"]');
+                    if (prev) prev.style.background = (self.select.value === prev.getAttribute('data-value')) ? '#EFF6FF' : '';
+                    self.highlightIndex = idx;
+                    opt.style.background = '#F3F4F6';
+                }
             }
         });