feat: added review logic

services/backend/apps/review/models.py

@@ -1,6 +1,7 @@
 from django.db import models
 
 from apps.core.models import BaseModel
+from apps.task.models import CompetitionTaskSubmission
 
 
 class Reviewer(BaseModel):
@@ -8,3 +9,14 @@ class Reviewer(BaseModel):
     surname = models.CharField(max_length=100)
 
     token = models.CharField(max_length=100)
+
+class Review(BaseModel):
+    class ReviewStatusChoices(models.TextChoices):
+        NOT_CHECKED = "not_checked"
+        CHECKING = "checking"
+        CHECKED = "checked"
+
+    reviewer = models.ForeignKey(Reviewer, on_delete=models.CASCADE)
+    submission = models.ForeignKey(CompetitionTaskSubmission, on_delete=models.CASCADE)
+
+    state = models.CharField(choices=ReviewStatusChoices.choices, max_length=11)