feat: add clinic management and financial reporting features

- Implemented ClinicFormPage for adding new clinics with validation.
- Created MyFinancialPage to display financial summaries and charts.
- Developed MyPatientsPage for managing patient data with search and pagination.
- Added PreRegistrationsPage for handling pre-registration requests with approval and rejection functionalities.
- Introduced database migration for pre_registrations table.
- Built PreRegistrationController for managing pre-registration logic, including submission, approval, and rejection.
- Created PreRegistration entity and repository for handling pre-registration data.

docs/api/auth.md

@@ -507,3 +507,50 @@ Invalidate the refresh token (stored in Redis).
   }
 }
 ```
+
+---
+
+## POST `/api/v1/pre-registration`
+
+Submit a pre-registration request (doctor or clinic). Public endpoint — no auth required.
+
+**Permission:** Public
+
+### Request Body
+```json
+{
+  "type": "independent_doctor",
+  "name": "دکتر علی احمدی",
+  "mobile": "09121234567",
+  "info": "متخصص داخلی، ۱۰ سال سابقه"
+}
+```
+
+| Field | Type | Required | Notes |
+|-------|------|----------|-------|
+| `type` | string | ✅ | `independent_doctor` \| `doctor_with_clinic` \| `clinic_manager` |
+| `name` | string | ✅ | min 2 chars |
+| `mobile` | string | ✅ | 10–15 chars |
+| `info` | string | ❌ | specialty, address, etc. |
+
+**Type meanings:**
+
+| Value | Roles granted on approval | Entities created |
+|-------|--------------------------|-----------------|
+| `independent_doctor` | `ROLE_DOCTOR` | Doctor |
+| `doctor_with_clinic` | `ROLE_DOCTOR` + `ROLE_CLINIC` | Doctor + Clinic |
+| `clinic_manager` | `ROLE_CLINIC` | Clinic |
+
+### Response `200`
+```json
+{
+  "success": true,
+  "data": { "uuid": "...", "status": "pending" }
+}
+```
+
+### Error Codes
+| Code | HTTP | Meaning |
+|------|------|---------|
+| `VALIDATION_ERROR` | 422 | Invalid type / mobile / name |
+| `DUPLICATE_REQUEST` | 409 | Pending request already exists for this mobile |