[codex] Add AppLens module detail selection

[cody257]

Summary

Adds the next dashboard interaction increment after PR #6.

• exposes module manifest detail through DashboardReadModelService
• carries module identity/detail through desktop presentation models
• makes module cards and left-rail module rows selectable
• renders an in-flow selected-module panel with status, capabilities, privacy posture, entrypoints, storage roots, health checks, and allowed actions

Validation

• dotnet build AppLensDesktop.sln -c Debug
• dotnet test AppLensDesktop.sln -c Debug — 54/54 passing
• dotnet publish src\AppLens.Desktop\AppLens.Desktop.csproj -c Release -p:GenerateAppxPackageOnBuild=true -p:AppxPackageSigningEnabled=false
  • passes; warning only: mspdbcmf.exe missing, so symbols package is not generated
• real WinUI screenshot captured locally at artifacts/screenshots/module-detail-ui-winui.png

Notes

This keeps Tune execution out of scope. The detail panel is read-only and prepares the surface for module-specific Tune proposals in the next roadmap increment.