feat(desktop): polish desktop shell and shared WebUI surfaces (#4195)

* feat(desktop): add native host scaffold

* feat(webui): track turns and usage in gateway

* feat(webui): polish desktop chat experience

* feat(apps): add ArcGIS and Joplin logos

* feat(desktop): polish shell and shared surfaces

* fix(webui): avoid preview chips for glob references

* test: align CI expectations for token fallback

* feat(webui): preview prompt rail entries

* feat(webui): add prompt navigator drawer

* style(webui): refine prompt navigator placement

* style(webui): align prompt navigator with header actions

* style(webui): simplify prompt navigator header

* refactor(webui): clean thread resource refresh

* feat(desktop): add native reply notifications

* fix(webui): preserve desktop restart and replay state

* fix(desktop): harden gateway proxy startup

* fix(web): fall back when readability is unavailable

* fix(desktop): hide window instead of closing on macos

* fix(webui): unify desktop header actions

* fix(webui): simplify prompt history rows

* fix(desktop): log notification delivery failures

* chore(desktop): clean source package artifacts

* fix(cron): support one-time relative reminders

* fix(webui): reveal scroll button in place

* Revert "fix(cron): support one-time relative reminders"

This reverts commit 4c4661da12.

* refactor(webui): extract token usage heatmap

* docs(desktop): clarify contributor guides

---------

Co-authored-by: chengyongru <2755839590@qq.com>

README.md

@@ -31,7 +31,7 @@
   </p>
 </div>
 
-🐈 **nanobot** is an open-source, ultra-lightweight agent runtime for people who want to own their AI agent stack. It gives you a small, readable core plus the practical pieces for real long-running agents: WebUI, chat channels, tools, memory, MCP, model routing, and deployment.
+🐈 **nanobot** is an open-source, ultra-lightweight personal AI agent you can truly own. It keeps the agent core small and readable while giving you the practical pieces for real long-running work: WebUI, chat channels, tools, memory, MCP, model routing, automation, and deployment.
 
 ## 📢 News