new file structure & koneksi ke DB

internal/api/models/doctor.go

@@ -0,0 +1,8 @@
+package models
+
+// DoctorDetails contains doctor-specific data
+type DoctorDetails struct {
+	DoctorID   string `json:"doctor_id"`
+	DoctorName string `json:"doctor_name"`
+	Type       string `json:"type"` // "ref_doctor" or "expertise_doctor"
+}