docs: add Jan v0.7.0 changelog

docs/src/pages/changelog/2025-10-02-jan-projects-.mdx

@@ -0,0 +1,27 @@
+---
+title: "Jan v0.7.0"
+version: v0.7.0
+description: "Jan v0.7.0 introduces Projects, model renaming, llama.cpp auto-tuning, model stats, and Azure support."
+date: 2025-10-02
+ogImage: "/assets/images/changelog/jan-release-v0.7.0.jpeg"
+---
+
+import ChangelogHeader from "@/components/Changelog/ChangelogHeader"
+import { Callout } from 'nextra/components'
+
+<ChangelogHeader title="Jan v0.7.0" date="2025-10-01" ogImage="/assets/images/changelog/jan-release-v0.7.0.jpeg" />
+
+## Jan v0.7.0: Jan Projects
+
+Jan v0.7.0 is live! This release focuses on helping you organize your workspace and making models run more efficiently.  
+
+### What’s new
+- **Projects**: Group related chats under one project for a cleaner workflow.  
+- **Rename models**: Give your models custom names for easier identification.  
+- **Model context stats**: See context usage when a model runs.  
+- **Automatic llama.cpp tuning**: Jan now adjusts settings such as context size and GPU layers based on your hardware, so local models run more efficiently out of the box.  
+- **Auto-loaded cloud models**: Cloud model names now appear automatically, with support for Azure as a provider.  
+
+Update your Jan or [download the latest version](https://jan.ai/).  
+
+For the complete list of changes, see the [GitHub release notes](https://github.com/janhq/jan/releases/tag/v0.7.0).