Overhaul coach create form: full validation, NID auto-parse, edge cases

Frontend:
- Client-side NID parser (no API call) — extracts DOB, gender, age, governorate
- Shows green badge with parsed info (governorate, gender, age)
- Red highlight + Arabic message on every invalid field
- Validates: code, name, employment_type, payment_model (non-academy),
  academy_id (academy), NID length, email format, phone format
- Hides payment/rate fields for academy coaches (not needed)
- Shows note explaining academy coaches follow salary system
- Gender/DOB auto-locked when NID is valid, manual otherwise
- Age displayed under DOB field

Backend:
- Strips non-digits from NID input
- Uppercase code automatically
- Checks NID uniqueness against existing coaches
- Validates email with filter_var
- Academy coach requires academy_id selected
- payment_model defaults to 'salary' for academy, 'per_session' fallback
- max_groups minimum 1
- Success message includes coach name
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Modules/SportsActivity/Controllers/CoachController.php

@@ -99,10 +99,10 @@ class CoachController extends Controller
     {
         $db = App::getInstance()->db();
 
-        $code = trim((string) $request->post('code', ''));
+        $code = strtoupper(trim((string) $request->post('code', '')));
         $fullNameAr = trim((string) $request->post('full_name_ar', ''));
         $fullNameEn = trim((string) $request->post('full_name_en', ''));
-        $nationalId = trim((string) $request->post('national_id', ''));
+        $nationalId = preg_replace('/\D/', '', trim((string) $request->post('national_id', '')));
         $phone = trim((string) $request->post('phone', ''));
         $email = trim((string) $request->post('email', ''));
         $dateOfBirth = trim((string) $request->post('date_of_birth', ''));
@@ -114,6 +114,11 @@ class CoachController extends Controller
         $monthlyRate = trim((string) $request->post('monthly_rate', ''));
         $maxGroups = trim((string) $request->post('max_groups', ''));
         $bioAr = trim((string) $request->post('bio_ar', ''));
+        $coachType = trim((string) $request->post('coach_type', 'independent'));
+
+        if (!array_key_exists($coachType, Coach::getCoachTypeOptions())) {
+            $coachType = 'independent';
+        }
 
         // Validation
         $errors = [];
@@ -121,6 +126,8 @@ class CoachController extends Controller
             $errors[] = 'كود المدرب مطلوب';
         } elseif (mb_strlen($code) > 30) {
             $errors[] = 'كود المدرب يجب ألا يتجاوز 30 حرف';
+        } elseif (Coach::findByCode($code) !== null) {
+            $errors[] = 'كود المدرب "' . $code . '" مستخدم بالفعل — اختر كود آخر';
         }
         if ($fullNameAr === '') {
             $errors[] = 'الاسم بالعربي مطلوب';
@@ -130,15 +137,23 @@ class CoachController extends Controller
         if ($employmentType === '') {
             $errors[] = 'نوع التوظيف مطلوب';
         }
-        $coachType = trim((string) $request->post('coach_type', 'independent'));
-        if (!array_key_exists($coachType, Coach::getCoachTypeOptions())) {
-            $coachType = 'independent';
-        }
         if ($coachType !== 'academy' && $paymentModel === '') {
-            $errors[] = 'نموذج الدفع مطلوب';
+            $errors[] = 'نموذج الدفع مطلوب للمدربين غير التابعين لأكاديمية';
+        }
+        if ($coachType === 'academy' && !(int) $request->post('academy_id', 0)) {
+            $errors[] = 'يجب اختيار الأكاديمية لمدرب أكاديمية';
+        }
+        if ($nationalId !== '' && strlen($nationalId) !== 14) {
+            $errors[] = 'الرقم القومي يجب أن يكون 14 رقم بالضبط';
+        }
+        if ($nationalId !== '' && strlen($nationalId) === 14) {
+            $existingCoach = $db->selectOne("SELECT id, full_name_ar FROM sa_coaches WHERE national_id = ? AND is_archived = 0", [$nationalId]);
+            if ($existingCoach) {
+                $errors[] = 'الرقم القومي مسجل بالفعل للمدرب: ' . ($existingCoach['full_name_ar'] ?? '');
+            }
         }
-        if ($code !== '' && Coach::findByCode($code) !== null) {
-            $errors[] = 'كود المدرب مستخدم بالفعل';
+        if ($email !== '' && !filter_var($email, FILTER_VALIDATE_EMAIL)) {
+            $errors[] = 'صيغة البريد الإلكتروني غير صحيحة';
         }
 
         if (!empty($errors)) {
@@ -149,11 +164,12 @@ class CoachController extends Controller
             return $this->redirect('/sa/coaches/create');
         }
 
+        // Parse NID for DOB/gender
         if ($nationalId !== '' && strlen($nationalId) === 14) {
             $parsed = NationalIdParser::parse($nationalId);
             if ($parsed['is_valid']) {
-                $dateOfBirth = $parsed['dob'];
-                $gender = $parsed['gender'];
+                if ($parsed['dob']) $dateOfBirth = $parsed['dob'];
+                if ($parsed['gender']) $gender = $parsed['gender'];
             }
         }
 
@@ -175,16 +191,15 @@ class CoachController extends Controller
             'hourly_rate'     => $coachType === 'academy' ? null : ($hourlyRate !== '' ? (float) $hourlyRate : null),
             'session_rate'    => $coachType === 'academy' ? null : ($sessionRate !== '' ? (float) $sessionRate : null),
             'monthly_rate'    => $coachType === 'academy' ? null : ($monthlyRate !== '' ? (float) $monthlyRate : null),
-            'max_groups'      => $maxGroups !== '' ? (int) $maxGroups : 10,
+            'max_groups'      => $maxGroups !== '' ? max(1, (int) $maxGroups) : 10,
             'bio_ar'          => $bioAr ?: null,
             'is_active'       => 1,
             'branch_id'       => App::getInstance()->session()->get('branch_id', 1),
         ]);
 
-        // Sync disciplines
         $this->syncDisciplines($db, (int) $coach->id, $request);
 
-        return $this->redirect('/sa/coaches')->withSuccess('تم إضافة المدرب بنجاح');
+        return $this->redirect('/sa/coaches')->withSuccess('تم إضافة المدرب "' . $fullNameAr . '" بنجاح');
     }
 
     public function show(Request $request, string $id): Response