Update README project layout for tests and new Services files

Reflect the current repo structure: AmiReel.Tests/, Properties/AssemblyInfo.cs,
and the FfmpegProgressParser/FfmpegOutputFilter split out of ProcessRunner.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

README.md

@@ -43,11 +43,18 @@ Models/
 Services/
   RenderPipeline.cs           Main render workflow (FFmpeg orchestration)
   ProcessRunner.cs            FFmpeg process execution and progress parsing
+  FfmpegProgressParser.cs     Parses time=/frame=/fps=/speed= from FFmpeg output lines
+  FfmpegOutputFilter.cs       Shared FFmpeg banner/boilerplate line filtering
   ToolExtractor.cs            FFmpeg resolution, extraction, and fallback logic
   MediaProbe.cs                Duration/audio-stream probing via ffprobe
   FfmpegLibraryProbe.cs        NVENC capability probing
   AppSettingsStore.cs          Settings load/save (JSON in %LOCALAPPDATA%)
   UserFacingErrors.cs          Exception-to-message translation
+Properties/
+  AssemblyInfo.cs              InternalsVisibleTo AmiReel.Tests
+  launchSettings.json
+  PublishProfiles/             win-x64/x86/arm64 publish profiles
+AmiReel.Tests/                Unit tests (MSTest), mirrors Models/ and Services/
 ThirdParty/                  Embedded ffmpeg.exe / ffprobe.exe (not checked in, see below)
 publish-win-x64.ps1          Publish script
 ```