feat: Paket 1 - Token-based invites, event & deadline management with live countdown, printable distribution sheet

app/models.py

@@ -17,6 +17,7 @@ class Tenant(Base):
     events = relationship("Event", back_populates="tenant", cascade="all, delete-orphan")
     orders = relationship("Order", back_populates="tenant", cascade="all, delete-orphan")
     users = relationship("User", back_populates="tenant", cascade="all, delete-orphan")
+    invitations = relationship("Invitation", back_populates="tenant", cascade="all, delete-orphan")
 
 
 class User(Base):
@@ -29,7 +30,7 @@ class User(Base):
     password_hash = Column(String(255), default="")
     first_name = Column(String(100), nullable=False)
     last_name = Column(String(100), nullable=False)
-    role = Column(String(20), default="user")
+    role = Column(String(20), default="user")  # 'admin', 'user'
     is_active = Column(Boolean, default=True)
     created_at = Column(DateTime, default=func.now())
 
@@ -37,6 +38,22 @@ class User(Base):
     orders = relationship("Order", back_populates="user")
 
 
+class Invitation(Base):
+    __tablename__ = "invitations"
+
+    id = Column(Integer, primary_key=True, index=True)
+    tenant_id = Column(Integer, ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False)
+    token = Column(String(64), unique=True, index=True, nullable=False)
+    email = Column(String(191), nullable=True)
+    role = Column(String(20), default="user", nullable=False)
+    created_by = Column(Integer, nullable=True)
+    expires_at = Column(DateTime, nullable=False)
+    used_at = Column(DateTime, nullable=True)
+    created_at = Column(DateTime, default=func.now())
+
+    tenant = relationship("Tenant", back_populates="invitations")
+
+
 class Product(Base):
     __tablename__ = "products"