docs: refresh the annotated dashboard tour for the 1.40 layout

The README and wiki tour image still showed the 1.7.0 UI. The new one is
a live capture of 1.40.0 (compact header pills with the plan-usage chip
beside them, File Viewer and Tiles buttons, tab logos, Run CC) with the
same three callouts: session tabs, live plan usage, one-click Run.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

README.md

@@ -50,7 +50,7 @@ The installer asks before every system change, and re-running the same line upda
 - **Self-hosted and private** - loopback-only by default, MIT licensed, no telemetry, runs entirely on your machine
 
 <p align="center">
-  <img src="docs/images/codeman-tour-20260724.png" alt="Codeman dashboard tour: session tabs per case, one-click Run for new agents, live plan usage in the header" width="900">
+  <img src="docs/images/codeman-tour-20261010.png" alt="Codeman dashboard tour: session tabs per case, one-click Run for new agents, live plan usage in the header" width="900">
 </p>
 
 ---

docs/wiki/The-Dashboard.md

@@ -6,7 +6,7 @@ Most of Codeman's UI is **opt-in**. A stock install shows a deliberately small h
 feature you read about here may simply not be on screen yet. Where that is the case, this
 page says so and names the setting.
 
-![Codeman dashboard](https://raw.githubusercontent.com/Ark0N/Codeman/master/docs/images/codeman-tour-20260724.png)
+![Codeman dashboard](https://raw.githubusercontent.com/Ark0N/Codeman/master/docs/images/codeman-tour-20261010.png)
 
 ## Layout