## Context
Set up Explorer templates properly for notebooks and chat. Tried (with
the help of Claude) to come up with templates that are generic enough
for most projects to sort of pick up and use, or even pick up to study
how notebooks are meant to be used.
Feel free to play around on the preview to check out the content of each
template! 🙂
<img width="768" height="232" alt="image"
src="https://github.com/user-attachments/assets/590893c4-9772-437d-980f-05ea62ffef81"
/>
<img width="1918" height="955" alt="image"
src="https://github.com/user-attachments/assets/2114e73e-dc44-403d-a998-e87c8d328516"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added ready-to-use chat templates for sample data, security policies,
and notebook creation.
* Added notebook templates for database health, user growth, and error
investigation workflows.
* Explorer cards now dynamically create chats and notebooks from
selected templates.
* Templates include guided prompts, queries, logs, charts, and relevant
notebook content.
* **Bug Fixes**
* Improved generated log cell identifiers for more reliable notebook
creation.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
