add nginx.dev.conf for development environment

add functionality of scheduler to send right event
data to the clients
added route for file download

models/models.py

@@ -1,7 +1,7 @@
 from sqlalchemy import (
     Column, Integer, String, Enum, TIMESTAMP, func, Boolean, ForeignKey, Float, Text, Index, DateTime
 )
-from sqlalchemy.orm import declarative_base
+from sqlalchemy.orm import declarative_base, relationship
 import enum
 from datetime import datetime, timezone
 
@@ -122,6 +122,9 @@ class Event(Base):
     updated_by = Column(Integer, ForeignKey('users.id'), nullable=True)
     is_active = Column(Boolean, default=True, nullable=False)
 
+    # Add relationship to EventMedia
+    event_media = relationship("EventMedia", foreign_keys=[event_media_id])
+
 
 class EventMedia(Base):
     __tablename__ = 'event_media'
@@ -130,7 +133,8 @@ class EventMedia(Base):
     url = Column(String(255), nullable=False)
     file_path = Column(String(255), nullable=True)
     message_content = Column(Text, nullable=True)
-    uploaded_at = Column(TIMESTAMP, nullable=False, default=lambda: datetime.now(timezone.utc))
+    uploaded_at = Column(TIMESTAMP, nullable=False,
+                         default=lambda: datetime.now(timezone.utc))
 
     def to_dict(self):
         return {