Overhaul of the frontend on waiters, orders, and payment events

Manager Dashboard: product reorder/bulk actions, preference sub-choices
UI, expanded reports with DateInput component, waiter management updates,
order detail improvements, Docker config and backend dockerignore added.

Backend: table groups, auto-numbering, has_active_order flag, expanded
reporting endpoints, waiter zone management, user schema updates, system
router additions, table router fixes.

Waiter PWA: TableDetailPage order/payment event improvements.

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

local_backend/models/order.py

@@ -22,6 +22,8 @@ class Order(Base):
     items = relationship("OrderItem", back_populates="order", cascade="all, delete-orphan")
     waiters = relationship("OrderWaiter", back_populates="order", cascade="all, delete-orphan")
     print_logs = relationship("PrintLog", back_populates="order", cascade="all, delete-orphan")
+    audit_logs = relationship("OrderAuditLog", back_populates="order", cascade="all, delete-orphan")
+    discounts = relationship("OrderDiscount", back_populates="order", cascade="all, delete-orphan")
 
 
 class OrderWaiter(Base):
@@ -52,9 +54,15 @@ class OrderItem(Base):
     added_at = Column(DateTime, default=datetime.utcnow)
     printed = Column(Boolean, default=False, nullable=False)
 
+    # Payment tracking
+    paid_by = Column(Integer, ForeignKey("users.id"), nullable=True)
+    paid_at = Column(DateTime, nullable=True)
+    payment_method = Column(String, nullable=True)  # 'cash'|'card'|'other' — future use
+
     order = relationship("Order", back_populates="items")
     product = relationship("Product", back_populates="order_items")
-    added_by_user = relationship("User", back_populates="order_items")
+    added_by_user = relationship("User", foreign_keys=[added_by], back_populates="order_items")
+    paid_by_user = relationship("User", foreign_keys=[paid_by], back_populates="items_paid")
 
 
 class PrintLog(Base):
@@ -70,3 +78,44 @@ class PrintLog(Base):
 
     order = relationship("Order", back_populates="print_logs")
     printer = relationship("Printer", back_populates="print_logs")
+
+
+class OrderAuditLog(Base):
+    """Immutable append-only audit trail for every action on an order."""
+    __tablename__ = "order_audit_log"
+
+    id = Column(Integer, primary_key=True, index=True)
+    order_id = Column(Integer, ForeignKey("orders.id"), nullable=False)
+    event_type = Column(String, nullable=False)
+    # ORDER_OPENED | ITEMS_ADDED | PAYMENT | ORDER_CLOSED | ORDER_CANCELLED | ITEM_CANCELLED
+    waiter_id = Column(Integer, ForeignKey("users.id"), nullable=True)
+    item_ids = Column(Text, nullable=True)      # JSON list of OrderItem ids (for ITEMS_ADDED, PAYMENT, ITEM_CANCELLED)
+    amount = Column(Float, nullable=True)       # total value for PAYMENT events
+    payment_method = Column(String, nullable=True)
+    note = Column(Text, nullable=True)
+    created_at = Column(DateTime, default=datetime.utcnow)
+
+    order = relationship("Order", back_populates="audit_logs")
+    waiter = relationship("User")
+
+    @property
+    def waiter_name(self):
+        return self.waiter.username if self.waiter else None
+
+
+class OrderDiscount(Base):
+    """Records a discount applied to an order or a specific item."""
+    __tablename__ = "order_discounts"
+
+    id = Column(Integer, primary_key=True, index=True)
+    order_id = Column(Integer, ForeignKey("orders.id"), nullable=False)
+    item_id = Column(Integer, ForeignKey("order_items.id"), nullable=True)  # NULL = whole-order discount
+    discount_type = Column(String, nullable=False)   # 'percent' | 'fixed'
+    discount_value = Column(Float, nullable=False)   # e.g. 10.0 = 10% or €10.00
+    applied_by = Column(Integer, ForeignKey("users.id"), nullable=False)
+    applied_at = Column(DateTime, default=datetime.utcnow)
+    reason = Column(Text, nullable=True)
+
+    order = relationship("Order", back_populates="discounts")
+    item = relationship("OrderItem")
+    applied_by_user = relationship("User")

local_backend/models/table.py

@@ -13,6 +13,7 @@ class TableGroup(Base):
     color = Column(String, nullable=True)
 
     tables = relationship("Table", back_populates="group")
+    waiter_zones = relationship("WaiterZone", back_populates="group")
 
 
 class Table(Base):

local_backend/models/user.py

@@ -12,12 +12,18 @@ class User(Base):
     pin_hash = Column(String, nullable=False)
     role = Column(String, nullable=False)  # 'waiter' | 'manager' | 'sysadmin'
     is_active = Column(Boolean, default=True, nullable=False)
+    full_name = Column(String, nullable=True)
+    nickname = Column(String, nullable=True)
+    mobile_phone = Column(String, nullable=True)
+    avatar_url = Column(String, nullable=True)
     created_at = Column(DateTime, default=datetime.utcnow)
 
     orders_opened = relationship("Order", foreign_keys="Order.opened_by", back_populates="opener")
     orders_closed = relationship("Order", foreign_keys="Order.closed_by", back_populates="closer")
-    order_items = relationship("OrderItem", back_populates="added_by_user")
+    order_items = relationship("OrderItem", foreign_keys="OrderItem.added_by", back_populates="added_by_user")
+    items_paid = relationship("OrderItem", foreign_keys="OrderItem.paid_by", back_populates="paid_by_user")
     order_assignments = relationship("OrderWaiter", back_populates="waiter")
+    zone_assignments = relationship("WaiterZone", back_populates="waiter", cascade="all, delete-orphan")
 
     primary_assignments = relationship(
         "AssistantAssignment",
@@ -31,6 +37,21 @@ class User(Base):
     )
 
 
+class WaiterZone(Base):
+    """Maps a waiter to a table group they are allowed to operate in.
+    If a waiter has NO rows here, they see NOTHING.
+    A sentinel row with group_id=NULL means 'all zones'."""
+    __tablename__ = "waiter_zones"
+
+    id = Column(Integer, primary_key=True, index=True)
+    waiter_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+    group_id = Column(Integer, ForeignKey("table_groups.id"), nullable=True)  # NULL = all zones
+    assigned_at = Column(DateTime, default=datetime.utcnow)
+
+    waiter = relationship("User", back_populates="zone_assignments")
+    group = relationship("TableGroup", back_populates="waiter_zones")
+
+
 class AssistantAssignment(Base):
     __tablename__ = "assistant_assignments"