feat(api): add dashboard endpoints for clinic, doctor, and secretary roles

- Implemented GET /api/v1/dashboard/clinic to return clinic stats and today's schedule for clinic owners.
- Implemented GET /api/v1/dashboard/doctor to return doctor's stats and today's schedule for doctors.
- Implemented GET /api/v1/dashboard/secretary to return stats and conditional appointments for secretaries.

feat(migrations): create user_active_context and mobile_verification_otp tables

- Added migration to create user_active_context table for tracking active user sessions.
- Added migration to create mobile_verification_otp table for handling mobile number verification.

feat(migrations): create site_config table for application settings

- Added migration to create site_config table to store various site configuration settings.

feat(appointments): create MyAppointmentsController for user-specific appointments

- Added MyAppointmentsController to handle fetching user-specific appointments with pagination and filtering.

feat(auth): implement NotificationMobileController for mobile number verification

- Added NotificationMobileController to handle OTP requests and verification for mobile number changes.

feat(auth): create MobileVerificationOtp entity for OTP management

- Created MobileVerificationOtp entity to manage OTP records for mobile verification.

feat(auth): create UserActiveContext entity for user session management

- Created UserActiveContext entity to manage user active sessions.

feat(config): implement SiteConfigController for managing site settings

- Added SiteConfigController to handle fetching and updating site configuration settings.

feat(config): create SiteConfig entity and repository for configuration management

- Created SiteConfig entity and repository to manage site configuration data.

src/Config/Repository/SiteConfigRepository.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace App\Config\Repository;
+
+use App\Config\Entity\SiteConfig;
+use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
+use Doctrine\Persistence\ManagerRegistry;
+
+class SiteConfigRepository extends ServiceEntityRepository
+{
+    // Default values returned when a key is missing from DB
+    private const DEFAULTS = [
+        'commission_enabled'         => '0',
+        'commission_percent'         => '0',
+        'site_name'                  => 'ClinicPro',
+        'support_phone'              => '',
+        'max_cancel_hours_before'    => '24',
+        'appointment_reminder_hours' => '2',
+    ];
+
+    public function __construct(ManagerRegistry $registry)
+    {
+        parent::__construct($registry, SiteConfig::class);
+    }
+
+    public function get(string $key): ?string
+    {
+        $row = $this->find($key);
+        if ($row !== null) {
+            return $row->getValue();
+        }
+        return self::DEFAULTS[$key] ?? null;
+    }
+
+    public function getAll(): array
+    {
+        $rows = $this->findAll();
+        $map  = [];
+        foreach ($rows as $row) {
+            $map[$row->getKey()] = $row->getValue();
+        }
+        // Fill missing keys with defaults
+        foreach (self::DEFAULTS as $key => $default) {
+            if (!isset($map[$key])) {
+                $map[$key] = $default;
+            }
+        }
+        return $map;
+    }
+
+    public function set(string $key, ?string $value): void
+    {
+        $row = $this->find($key);
+        if ($row === null) {
+            $row = new SiteConfig($key, $value);
+            $this->getEntityManager()->persist($row);
+        } else {
+            $row->setValue($value);
+        }
+    }
+}