0.1 Solution + projects

Scaffold FrameProcessor.slnx with src/FrameProcessor (net10.0 Web SDK) and
tests/FrameProcessor.Tests (xUnit) plus .gitignore and global.json pinning
the .NET 10 SDK. dotnet build, dotnet test, and dotnet format --verify-no-changes
all pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/FrameProcessor/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}