fix error in gitignore

apps/pricing/models.py

@@ -0,0 +1,33 @@
+from django.db import models
+
+from apps.core.models import TimeStampedModel, UUIDModel
+
+
+class PricingRule(UUIDModel, TimeStampedModel):
+    class RuleType(models.TextChoices):
+        FIXED = "fixed", "Fixed"
+        PER_KG = "per_kg", "Per kilogram"
+        PER_UNIT = "per_unit", "Per unit"
+        PERCENTAGE = "percentage", "Percentage"
+        TIERED = "tiered", "Tiered"
+        DISCOUNT = "discount", "Discount"
+        TAX = "tax", "Tax"
+        FEE = "fee", "Additional fee"
+
+    step = models.ForeignKey(
+        "workflows.WorkflowStep", on_delete=models.CASCADE, related_name="pricing_rules"
+    )
+    name = models.CharField(max_length=200)
+    rule_type = models.CharField(max_length=16, choices=RuleType.choices)
+    # Base amount. Meaning depends on rule_type:
+    #   fixed/per_kg/per_unit -> money; percentage/discount/tax -> percent.
+    amount = models.DecimalField(max_digits=18, decimal_places=2, default=0)
+    config = models.JSONField(default=dict, blank=True)
+    active = models.BooleanField(default=True)
+    priority = models.IntegerField(default=0)
+
+    class Meta:
+        ordering = ["priority"]
+
+    def __str__(self) -> str:
+        return f"{self.name} ({self.rule_type})"