Add attendee transformation workflows

MeetingAssistant.Tests/MeetingScreenshotServiceTests.cs

@@ -1,6 +1,7 @@
 using MeetingAssistant.MeetingNotes;
 using MeetingAssistant.Screenshots;
 using MeetingAssistant.Speakers;
+using MeetingAssistant.Workflow;
 using Microsoft.Extensions.Logging.Abstractions;
 using Microsoft.Extensions.Options;
 using System.Drawing;
@@ -167,6 +168,35 @@ public sealed class MeetingScreenshotServiceTests
             request.SequenceEqual(["Ada Lovelace", "Ada L.", "Grace Hopper", "Ada Lovelace"]));
     }
 
+    [Fact]
+    public async Task CaptureTransformsOcrAttendeesBeforeWritingMeetingNote()
+    {
+        var fixture = await ScreenshotFixture.CreateAsync(
+            options =>
+            {
+                options.Screenshots.Ocr.Enabled = true;
+            });
+        var workflowEngine = new TransformingAttendeeWorkflowEngine("Ada Lovelace (Contoso)", "Ada Lovelace");
+        var service = fixture.CreateService(
+            new FixedScreenshotCapture([1, 2, 3]),
+            new CapturingScreenshotOcrClient(
+                "Visible participant tile: Ada.",
+                attendees: ["Ada Lovelace (Contoso)"]),
+            meetingWorkflowEngine: workflowEngine);
+
+        await service.CaptureAsync(
+            fixture.Artifacts,
+            DateTimeOffset.Parse("2026-05-26T10:00:00+02:00"),
+            DateTimeOffset.Parse("2026-05-26T10:00:10+02:00"),
+            fixture.Options,
+            CancellationToken.None);
+        await service.WaitForPendingOcrAsync(fixture.Artifacts, TimeSpan.FromSeconds(5), CancellationToken.None);
+
+        var meeting = await fixture.NoteStore.ReadAsync(fixture.Artifacts.MeetingNotePath, CancellationToken.None);
+        Assert.Equal(["Ada Lovelace"], meeting.Frontmatter.Attendees);
+        Assert.Equal(["Ada Lovelace (Contoso)"], workflowEngine.AttendeeRequests);
+    }
+
     [Fact]
     public async Task CaptureWritesRetryLinkWhenOcrFails()
     {
@@ -423,7 +453,8 @@ public sealed class MeetingScreenshotServiceTests
         public MeetingScreenshotService CreateService(
             IActiveWindowScreenshotCapture capture,
             IScreenshotOcrClient ocrClient,
-            ISpeakerIdentityAttendeeCanonicalizer? attendeeCanonicalizer = null)
+            ISpeakerIdentityAttendeeCanonicalizer? attendeeCanonicalizer = null,
+            IMeetingWorkflowEngine? meetingWorkflowEngine = null)
         {
             return new MeetingScreenshotService(
                 capture,
@@ -431,7 +462,8 @@ public sealed class MeetingScreenshotServiceTests
                 NoteStore,
                 attendeeCanonicalizer ?? PassthroughSpeakerIdentityAttendeeCanonicalizer.Instance,
                 ocrClient,
-                NullLogger<MeetingScreenshotService>.Instance);
+                NullLogger<MeetingScreenshotService>.Instance,
+                meetingWorkflowEngine);
         }
     }