feat: tapping new node seen notification opens node detail page

[mdecourcy]

• Implemented tap action on “New Node Seen” notifications to open the specific node’s Details screen.
• Added deep link meshtastic://meshtastic/node/{destNum} to the notification PendingIntent.
• MainActivity forwards unhandled deep links to the UI; MainScreen parses /node/{destNum} and navigates to NodesRoutes.NodeDetailGraph(destNum) so ViewModels receive the param.
• Matches existing message notification deep-link behavior; if parsing fails, it safely falls back to opening the app.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 34 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.51%. Comparing base (65775fd) to head (5b617d3).
⚠️ Report is 15 commits behind head on main.

Files with missing lines	Patch %	Lines
app/src/main/java/com/geeksville/mesh/ui/Main.kt	0.00%	18 Missing ⚠️
...ville/mesh/service/MeshServiceNotificationsImpl.kt	0.00%	9 Missing ⚠️
...src/main/java/com/geeksville/mesh/model/UIState.kt	0.00%	5 Missing ⚠️
.../src/main/java/com/geeksville/mesh/MainActivity.kt	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##            main   #3684      +/-   ##
========================================
- Coverage   0.51%   0.51%   -0.01%     
========================================
  Files        374     377       +3     
  Lines      21159   21328     +169     
  Branches    2538    2588      +50     
========================================
  Hits         109     109              
- Misses     21030   21199     +169     
  Partials      20      20              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jamesarich]

@mdecourcy - we've already got deeplink routes defined in navigation.. we should be handling this similarly to how we're currently navigating to the correct Conversation from the message notif.

see: https://github.com/meshtastic/Meshtastic-Android/blob/main/app/src/main/java/com/geeksville/mesh/navigation/NodesNavigation.kt#L90-L96

[DaneEvans]

Looks fine to me once James' happy

[jamesarich]

The current message notification routes to the message screen appropriately without this, using the Navigation sdk deeplinking that's already in place. Why do we need additional handling here?

[mdecourcy]

I honestly wasnt able to get it working without the extra handling, just kept opening the node lsit. I can take another stab at it later today when I'm at the airport