POL-5: Add organizations table

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/models/organization.py

@@ -0,0 +1,30 @@
+import uuid
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, String, Uuid, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+class Organization(Base):
+    __tablename__ = "organizations"
+
+    id: Mapped[uuid.UUID] = mapped_column(Uuid(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(Uuid(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), unique=True)
+    name: Mapped[str] = mapped_column(String(255), nullable=False)
+    instagram: Mapped[str | None] = mapped_column(String(100))
+    email: Mapped[str | None] = mapped_column(String(255))
+    city: Mapped[str | None] = mapped_column(String(100))
+    logo_url: Mapped[str | None] = mapped_column(String(500))
+    verified: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
+    # 'pending' | 'active' | 'rejected' | 'blocked'
+    status: Mapped[str] = mapped_column(String(20), nullable=False, default="pending")
+    block_reason: Mapped[str | None] = mapped_column(String(500))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
+    )
+
+    user: Mapped["User"] = relationship(back_populates="organization")  # type: ignore[name-defined]
+    championships: Mapped[list["Championship"]] = relationship(back_populates="organization")  # type: ignore[name-defined]

backend/app/models/user.py

@@ -30,6 +30,7 @@ class User(Base):
     refresh_tokens: Mapped[list["RefreshToken"]] = relationship(back_populates="user", cascade="all, delete-orphan")
     registrations: Mapped[list["Registration"]] = relationship(back_populates="user")  # type: ignore[name-defined]
     notification_logs: Mapped[list["NotificationLog"]] = relationship(back_populates="user")  # type: ignore[name-defined]
+    organization: Mapped["Organization | None"] = relationship(back_populates="user", uselist=False)  # type: ignore[name-defined]
 
 
 class RefreshToken(Base):