rule_stops accepts bool as well

Author: Karthikeyannhs

src/eligibility_signposting_api/model/rules.py

@@ -105,9 +105,11 @@ class IterationRule(BaseModel):
     @field_validator("rule_stop", mode="before")
     @staticmethod
     def parse_yn_to_bool(v: str | bool) -> bool:
+        if isinstance(v, bool):
+            return v
         if isinstance(v, str):
-            return v.upper() == "Y"
-        return bool(v)
+            return v.strip().upper() == "Y"
+        return False
 
     model_config = {"populate_by_name": True, "extra": "ignore"}