Add nomination submission and bidding start workflow

- Added `BID_START_REQUEST` and `NOMINATION_SUBMIT_REQUEST` handling in backend consumers.
- Extended draft state to include `current_movie` and `bids` cache keys.
- Updated frontend to:
  - Allow participants to nominate movies when it's their turn.
  - Enable admins to start bidding for the nominated movie.
  - Highlight the current nominated movie and the current user.
- Synced state updates across clients via WebSocket events.

draft/consumers.py

@@ -182,6 +182,34 @@ class DraftAdminConsumer(DraftConsumerBase):
                 },
             )
 
+        if event_type == DraftMessage.NOMINATION_SUBMIT_REQUEST:
+            movie_id = content.get('payload',{}).get('movie_id')
+            user = content.get('payload',{}).get('user')
+            self.draft_state.start_nomination(movie_id)
+            await self.channel_layer.group_send(
+                self.group_names.session,
+                {
+                    "type": "broadcast.session",
+                    "subtype": DraftMessage.NOMINATION_CONFIRM,
+                    "payload": {
+                        "current_movie": self.draft_state.get_summary()['current_movie'],
+                        "nominating_participant":  user
+                    }
+                }
+            )
+        if event_type == DraftMessage.BID_START_REQUEST:
+            self.draft_state
+            await self.channel_layer.group_send(
+                self.group_names.session,
+                {
+                    "type": "broadcast.session",
+                    "subtype": DraftMessage.BID_START_INFORM,
+                    "payload": {
+                        "current_movie": self.draft_state.get_summary()['current_movie']
+                    }
+                }
+            )
+
     def should_accept_user(self):
         return super().should_accept_user() and self.user.is_staff
 
@@ -276,6 +304,20 @@ class DraftParticipantConsumer(DraftConsumerBase):
 
     async def receive_json(self, content):
         await super().receive_json(content)
+        event_type = content.get('type')
+        if event_type == DraftMessage.NOMINATION_SUBMIT_REQUEST:
+            await self.channel_layer.group_send(
+                self.group_names.admin,
+                {
+                    "type": "broadcast.admin",
+                    "subtype": event_type,
+                    "payload": {
+                        "movie_id": content.get('payload',{}).get('id'),
+                        "user": content.get('payload',{}).get('user')
+                    }
+                }
+            )
+
 
     # === Broadcast handlers ===