fix: use SSL-tolerant axios instance for server-side API calls

صفحات سرور (doctors, doctor/[slug], appointment/[doctorId]) از axios خام
استفاده می‌کردند که گواهی self-signed ddev محلی را رد می‌کرد
(unable to verify the first certificate). حالا از axiosInstance/fetchReq
در lib/req استفاده می‌کنند که در development آن را می‌پذیرد.
افزودن clinic-pro.ddev.site (http/https) به remotePatterns تصاویر.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/appointment/[doctorId]/page.js

@@ -1,6 +1,6 @@
 import AppointmentPage from "@/components/appointment";
 import { getStateInfo } from "@/lib/getStateInfo";
-import axios from "axios";
+import { axiosInstance } from "@/lib/req";
 
 async function Appointment({ params }) {
   const { doctorId } = await params;
@@ -11,11 +11,11 @@ async function Appointment({ params }) {
   let disabledDates = [];
 
   try {
-    const doctorRes = await axios.get(`${API_URL}/api/v1/doctor/${doctorId}`);
+    const doctorRes = await axiosInstance.get(`${API_URL}/api/v1/doctor/${doctorId}`);
     doctor = doctorRes.data;
 
     if (doctor && doctor.id) {
-      const disabledDatesRes = await axios.get(
+      const disabledDatesRes = await axiosInstance.get(
         `${API_URL}/api/v1/appointment/not-available/${doctor.id}`,
         { headers: { "Content-Type": "application/json" } }
       );