Added senior official model (still need to add migrations and foreign key in Portfolios)

src/registrar/models/senior_official.py

@@ -0,0 +1,55 @@
+from django.db import models
+
+from .utility.time_stamped_model import TimeStampedModel
+from phonenumber_field.modelfields import PhoneNumberField  # type: ignore
+
+
+class SeniorOfficial(TimeStampedModel):
+    """
+    Senior Official is a distinct Contact-like entity (NOT to be inherited
+    from Contacts) developed for the unique role these individuals have in
+    managing Portfolios.
+    """
+
+    class Meta:
+        """Contains meta information about this class"""
+
+        # Placeholder for later tickets...
+        # indexes = [
+        #     models.Index(fields=["user"]),
+        #     models.Index(fields=["email"]),
+        # ]
+
+
+    first_name = models.CharField(
+        null=True,
+        blank=True,
+        verbose_name="first name",
+    )
+    last_name = models.CharField(
+        null=True,
+        blank=True,
+        verbose_name="last name",
+    )
+    title = models.CharField(
+        null=True,
+        blank=True,
+        verbose_name="title / role",
+    )
+    phone = PhoneNumberField(
+        null=True,
+        blank=True,
+    )
+
+    def get_formatted_name(self):
+        """Returns the contact's name in Western order."""
+        names = [n for n in [self.first_name, self.last_name] if n]
+        return " ".join(names) if names else "Unknown"
+    
+    def __str__(self):
+        if self.first_name or self.last_name:
+            return self.get_formatted_name()
+        elif self.pk:
+            return str(self.pk)
+        else:
+            return ""