feat: add graduation archive and public document services

app/Models/Student.php

@@ -145,6 +145,11 @@ class Student extends Model
         return $this->hasOne(StudentTransfer::class);
     }
 
+    public function graduationRecord(): HasOne
+    {
+        return $this->hasOne(StudentGraduation::class);
+    }
+
     public function achievements(): HasMany
     {
         return $this->hasMany(StudentAchievement::class)->latest('achievement_year')->latest('achievement_date');