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.

docs/api/admin.md

@@ -677,3 +677,48 @@ List all SMS templates.
 | `POST /api/v1/admin/clinic/invitation/{invUuid}/resend` | Resend SMS |
 | `PATCH /api/v1/admin/clinic/invitation/{invUuid}/status` | Change status |
 | `DELETE /api/v1/admin/clinic/invitation/{invUuid}` | Delete |
+
+---
+
+## Settings
+
+### GET /api/v1/admin/settings
+
+Returns all site configuration values.
+
+**Response `200`**
+```json
+{
+  "success": true,
+  "data": {
+    "commission_enabled": "0",
+    "commission_percent": "0",
+    "site_name": "ClinicPro",
+    "support_phone": "",
+    "max_cancel_hours_before": "24",
+    "appointment_reminder_hours": "2"
+  }
+}
+```
+
+All values are strings. Missing keys return their default values.
+
+### PATCH /api/v1/admin/settings
+
+Update one or more settings. Unknown keys are silently ignored.
+
+**Request body** (partial update — send only keys to change):
+```json
+{
+  "commission_enabled": "1",
+  "commission_percent": "5",
+  "site_name": "کلینیک‌پرو"
+}
+```
+
+**Response `200`** — same shape as GET, returns all settings after save.
+
+**Commission rules:**
+- `commission_enabled` — `"1"` = active, `"0"` = inactive
+- `commission_percent` — integer string, `0`–`100`
+- Commission applies only to regular users (`booked_by = user`); secretaries are exempt