fix: enforce 30-record limit on all find queries and add trailing newlines to channel_message service

src/snek/service/channel_message.py

@@ -12,3 +12,5 @@ class ChannelMessageService(BaseService):
         if await self.save(model):
             return model
         raise Exception(f"Failed to create channel message: {model.errors}.")
+    
+    

src/snek/system/service.py

@@ -58,6 +58,8 @@ class BaseService:
         raise Exception(f"Couldn't save model. Errors: f{errors}")
 
     async def find(self, **kwargs):
+        if not "_limit" in kwargs or int(kwargs.get("_limit")) > 30:
+            kwargs["_limit"] = 30
         async for model in self.mapper.find(**kwargs):
             yield model