fix: stabilize Toolbox navigation

README.md

@@ -9,7 +9,12 @@ It is also an independent application in the add·ideas Toolbox contract. The
 source uses the Toolbox SDK shell and manifest, builds with Vite `base: './'`,
 and is delivered to Toolbox Portal as a checksummed static ZIP.
 
-## What version 0.3.0 supports
+Version 0.3.1 uses the stable shared top bar, with Personalize, Apps, the
+OneNote source link, and Help in a fixed left cluster; the app title and one
+tagline centered; and the Toolbox icon with the `add·ideas Toolbox` label in a
+fixed far-right block.
+
+## What version 0.3.1 supports
 
 - Desktop revision-store and unfragmented FSSHTTPB package-store `.one`
   sections from the tested producer families.
@@ -80,7 +85,7 @@ supplied through the SDK's `?toolbox=` context mechanism. The app uses the SDK
 
 ```sh
 npm run release:artifact
-(cd release && sha256sum -c onenote-tools-0.3.0.sha256)
+(cd release && sha256sum -c onenote-tools-0.3.1.sha256)
 ```
 
 The ZIP root contains the built static app and manifest plus the changelog,