feat(reactions): add message reactions API and web quick reactions

app/messages/router.py

@@ -3,14 +3,24 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from app.auth.service import get_current_user
 from app.database.session import get_db
-from app.messages.schemas import MessageCreateRequest, MessageForwardRequest, MessageRead, MessageStatusUpdateRequest, MessageUpdateRequest
+from app.messages.schemas import (
+    MessageCreateRequest,
+    MessageForwardRequest,
+    MessageReactionRead,
+    MessageReactionToggleRequest,
+    MessageRead,
+    MessageStatusUpdateRequest,
+    MessageUpdateRequest,
+)
 from app.messages.service import (
     create_chat_message,
     delete_message,
     delete_message_for_all,
     forward_message,
     get_messages,
+    list_message_reactions,
     search_messages,
+    toggle_message_reaction,
     update_message,
 )
 from app.realtime.schemas import MessageStatusPayload
@@ -104,3 +114,22 @@ async def forward_message_endpoint(
     message = await forward_message(db, source_message_id=message_id, sender_id=current_user.id, payload=payload)
     await realtime_gateway.publish_message_created(message=message, sender_id=current_user.id)
     return message
+
+
+@router.get("/{message_id}/reactions", response_model=list[MessageReactionRead])
+async def list_reactions_endpoint(
+    message_id: int,
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+) -> list[MessageReactionRead]:
+    return await list_message_reactions(db, message_id=message_id, user_id=current_user.id)
+
+
+@router.post("/{message_id}/reactions/toggle", response_model=list[MessageReactionRead])
+async def toggle_reaction_endpoint(
+    message_id: int,
+    payload: MessageReactionToggleRequest,
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+) -> list[MessageReactionRead]:
+    return await toggle_message_reaction(db, message_id=message_id, user_id=current_user.id, payload=payload)