Add support for think tags

[pelva]

For example, some models in Ollama will output .
The current think content is mixed with the official output, which is not convenient to read.

<think>
Okay, so I just saw this message: "Hey! Is there something fun or exciting happening in your world?" Hmm, that's pretty cool. I mean, how often do people ask each other if something's up? But wait, maybe it's not just any person. Let me think about why someone would ask that.

First off, it sounds a bit casual and friendly. Maybe they're trying to make new friends or have some fun conversations. Then again, "fun" is a big word for me. What exactly do you consider fun? Is it like getting up early or having good food? I guess I can respond in a way that's both engaging and relatable.

Maybe the person also wants something specific to share. They could be looking for advice on what to do or just curious about interesting things happening around them. Either way, I should be ready to offer something that touches on their interests without being too pushy.

I also need to consider if they might not know much about my personality. So, keeping it simple and clear would probably work best. Maybe a friendly smiley could help make the interaction feel more approachable. Yeah, I think that's it. Let me put this together in a natural way so everyone gets a good laugh and some fun to share!
</think>

Sure! Here's a lighthearted response:

"Hey! How about we have something fun together? What’s on your mind?"

You know you’ve got a lot of things on the menu. 😄