Deploy: install wasm-tools workload before publish (match CI)

https://claude.ai/code/session_01GwHuC47PH81Zw3EUfgkrYN

Author: claude

.github/workflows/deploy-wasm.yml

@@ -26,6 +26,9 @@ jobs:
         with:
           dotnet-version: '8.0.x'
 
+      - name: Install WASM workload
+        run: dotnet workload install wasm-tools
+
       - name: Publish Blazor WASM
         run: dotnet publish src/HealthNerd.Wasm/HealthNerd.Wasm.csproj -c Release -o ./publish