Add 3 roles, settings for marathons

backend/app/models/participant.py

@@ -1,10 +1,16 @@
 from datetime import datetime
-from sqlalchemy import DateTime, ForeignKey, Integer, UniqueConstraint
+from enum import Enum
+from sqlalchemy import DateTime, ForeignKey, Integer, String, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from app.core.database import Base
 
 
+class ParticipantRole(str, Enum):
+    PARTICIPANT = "participant"
+    ORGANIZER = "organizer"
+
+
 class Participant(Base):
     __tablename__ = "participants"
     __table_args__ = (
@@ -14,6 +20,7 @@ class Participant(Base):
     id: Mapped[int] = mapped_column(primary_key=True)
     user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), index=True)
     marathon_id: Mapped[int] = mapped_column(ForeignKey("marathons.id", ondelete="CASCADE"), index=True)
+    role: Mapped[str] = mapped_column(String(20), default=ParticipantRole.PARTICIPANT.value)
     total_points: Mapped[int] = mapped_column(Integer, default=0)
     current_streak: Mapped[int] = mapped_column(Integer, default=0)
     drop_count: Mapped[int] = mapped_column(Integer, default=0)  # For progressive penalty
@@ -27,3 +34,7 @@ class Participant(Base):
         back_populates="participant",
         cascade="all, delete-orphan"
     )
+
+    @property
+    def is_organizer(self) -> bool:
+        return self.role == ParticipantRole.ORGANIZER.value