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fix(ui): make ConversationInputSurface load state monotonic#67

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fix/chat-input-monotonic-load-9793495649596736472
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fix(ui): make ConversationInputSurface load state monotonic#67
google-labs-jules[bot] wants to merge 2 commits into
mainfrom
fix/chat-input-monotonic-load-9793495649596736472

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Observed Problem
During the daily lifecycle audit, it was discovered that ConversationInputSurface in ChatView.xaml relied purely on the Visibility property bound to ShouldShowConversationInputSurface, but lacked the layout realization (x:Load) binding that the rest of the chat surfaces (ActiveConversationRoot, TranscriptSurface) use to maintain a monotonic UI tree during overlay transitions.

Root Cause
The ShouldLoadConversationInputSurface property was missing from the ChatConversationSurfaceProjection and its underlying state projection logic.

Architectural Safety
The change is architecturally safe because it follows the existing SSOT and latest-intent patterns exactly. It updates the central projection record struct, sets the layout loading state using the standard logical OR monotonic accumulation _hasLoadedConversationInputSurface |= state.ShouldShowConversationInputSurface;, and binds it safely. No native control behavior is overridden, and all layout rules (docs/audit/ & memory context) are obeyed.

Verification Commands Run

  1. dotnet build SalmonEgg.sln --configuration Debug
  2. dotnet test --project tests/SalmonEgg.Presentation.Core.Tests/SalmonEgg.Presentation.Core.Tests.csproj --configuration Debug --no-restore
  3. dotnet test --solution SalmonEgg.sln --configuration Debug --no-build

Remaining GUI-only Risks
There are no major GUI risks as x:Load handles Uno cross-platform lazy loading natively, though visual testing with FlaUI/WASM smoke gates is deferred to CI.


PR created automatically by Jules for task 9793495649596736472 started by @YoungSx

The ConversationInputSurface was relying solely on `Visibility` without an `x:Load` optimization like other major surfaces in ChatView. This could lead to either unexpected pre-loading or loss of layout state when a blocking overlay temporarily hides the content.

This adds `ShouldLoadConversationInputSurface` to the `ChatConversationSurfaceProjection` record struct, coordinates it monotonically in `ChatConversationSurfaceProjectionCoordinator`, exposes it in `ChatViewModel`, and binds it via `x:Load` in `ChatView.xaml`.
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Project Deployment Actions Updated (UTC)
salmonegg Ready Ready Preview, Comment Jul 17, 2026 12:47am

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