```

Rename metadata fields for clarity and fix imports.

Updated metadata-related field names across models to improve clarity and consistency (e.g., `metadata` to `media_metadata` and `notification_metadata`). Fixed an error in `guest_gifts` metadata reference and added a proper imports initialization in `__init__.py` for all models.
```

backend/app/models/__init__.py

@@ -0,0 +1,41 @@
+"""
+Models package initialization.
+Imports all models to ensure they're registered with SQLAlchemy.
+"""
+from .base import Base, TimestampMixin, UUIDMixin
+
+# Import user model
+from .user import User
+
+# Import event-related models
+from .event import Event
+from .event_manager import EventManager, EventManagerRole, init_event_owner
+from .event_theme import EventTheme
+from .event_media import EventMedia, MediaType, MediaPurpose
+
+# Import guest and RSVP models
+from .guest import Guest, GuestStatus, guest_gifts
+from .rsvp import RSVP, RSVPStatus
+
+# Import gift-related models
+from .gift import (
+    GiftItem, GiftStatus, GiftPriority, GiftCategory,
+    GiftPurchase
+)
+
+# Import new models
+from .email_template import EmailTemplate, TemplateType
+from .notification_log import NotificationLog, NotificationType, NotificationStatus
+from .activity_log import ActivityLog, ActivityType
+
+# Make sure all models are imported above this line
+__all__ = [
+    'Base', 'TimestampMixin', 'UUIDMixin',
+    'User',
+    'Event', 'EventManager', 'EventManagerRole', 'EventTheme', 'EventMedia',
+    'Guest', 'GuestStatus', 'RSVP', 'RSVPStatus',
+    'GiftItem', 'GiftStatus', 'GiftPriority', 'GiftCategory', 'GiftPurchase',
+    'EmailTemplate', 'TemplateType',
+    'NotificationLog', 'NotificationType', 'NotificationStatus',
+    'ActivityLog', 'ActivityType',
+]

backend/app/models/activity_log.py

@@ -59,21 +59,21 @@ class ActivityLog(Base, UUIDMixin, TimestampMixin):
     # Request Information
     ip_address = Column(String)
     user_agent = Column(String)
-    
+
     # Additional Data
-    data = Column(JSONB, default=dict)
-    
+    activity_data = Column(JSONB, default=dict)
+
     # Relationships
     event = relationship("Event")
     user = relationship("User", foreign_keys=[user_id])
     guest = relationship("Guest")
-    
+
     def __repr__(self):
         return f"<ActivityLog {self.activity_type.value} event_id={self.event_id}>"
-    
+
     @classmethod
-    def log_event_activity(cls, activity_type, event_id, user_id=None, description=None, 
-                          ip_address=None, user_agent=None, **data):
+    def log_event_activity(cls, activity_type, event_id, user_id=None, description=None,
+                           ip_address=None, user_agent=None, **data):
         """
         Helper method to create an event activity log entry
         """
@@ -84,12 +84,12 @@ class ActivityLog(Base, UUIDMixin, TimestampMixin):
             description=description,
             ip_address=ip_address,
             user_agent=user_agent,
-            data=data
+            activity_data=data
         )
-    
+
     @classmethod
-    def log_user_activity(cls, activity_type, user_id, event_id=None, description=None, 
-                         ip_address=None, user_agent=None, **data):
+    def log_user_activity(cls, activity_type, user_id, event_id=None, description=None,
+                          ip_address=None, user_agent=None, **data):
         """
         Helper method to create a user activity log entry
         """
@@ -100,12 +100,12 @@ class ActivityLog(Base, UUIDMixin, TimestampMixin):
             description=description,
             ip_address=ip_address,
             user_agent=user_agent,
-            data=data
+            activity_data=data
         )
-    
+
     @classmethod
-    def log_guest_activity(cls, activity_type, guest_id, event_id, description=None, 
-                          ip_address=None, user_agent=None, **data):
+    def log_guest_activity(cls, activity_type, guest_id, event_id, description=None,
+                           ip_address=None, user_agent=None, **data):
         """
         Helper method to create a guest activity log entry
         """
@@ -116,5 +116,5 @@ class ActivityLog(Base, UUIDMixin, TimestampMixin):
             description=description,
             ip_address=ip_address,
             user_agent=user_agent,
-            data=data
+            activity_data=data
         )

backend/app/models/event_media.py

@@ -39,7 +39,7 @@ class EventMedia(Base, UUIDMixin, TimestampMixin):
     description = Column(String)
 
     # Additional Metadata
-    metadata = Column(JSON, default=dict)
+    media_metadata = Column(JSON, default=dict)
 
     # Relationships
     event = relationship("Event", back_populates="media")

backend/app/models/guest.py

@@ -84,7 +84,7 @@ class Guest(Base, UUIDMixin, TimestampMixin):
 # Association table for guest gifts (many-to-many relationship)
 guest_gifts = Table(
     'guest_gifts',
-    Base.metadata,
+    Base.notification_metadata,
     Column('guest_id', UUID(as_uuid=True), ForeignKey('guests.id'), primary_key=True),
     Column('gift_id', UUID(as_uuid=True), ForeignKey('gift_items.id'), primary_key=True),
     Column('reserved_at', DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)),

backend/app/models/notification_log.py

@@ -1,7 +1,7 @@
 from datetime import datetime, timezone
 from enum import Enum
 
-from sqlalchemy import Column, String, ForeignKey, Enum as SQLEnum, Text, DateTime
+from sqlalchemy import Column, String, ForeignKey, Enum as SQLEnum, Text, DateTime, Integer
 from sqlalchemy.dialects.postgresql import UUID, JSONB
 from sqlalchemy.orm import relationship
 
@@ -50,7 +50,7 @@ class NotificationLog(Base, UUIDMixin, TimestampMixin):
     external_id = Column(String)  # ID from external provider (SendGrid, Twilio, etc.)
 
     # Additional Data
-    metadata = Column(JSONB, default=dict)
+    notification_metadata = Column(JSONB, default=dict)
 
     # Relationships
     event = relationship("Event")