Add project files.

ClipForge/EncoderService.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Threading.Tasks;
+using Windows.Graphics.Capture;
+using Windows.Graphics.DirectX.Direct3D11;
+
+namespace ClipForge
+{
+    public class EncoderService
+    {
+        private string _ffmpegPath;
+
+        public EncoderService()
+        {
+            // FFmpeg binary will sit next to our app executable
+            _ffmpegPath = Path.Combine(
+                AppContext.BaseDirectory, "ffmpeg.exe");
+        }
+
+        public async Task SaveClipAsync(
+            List<Direct3D11CaptureFrame> frames,
+            string outputPath)
+        {
+            if (frames == null || frames.Count == 0) return;
+
+            // Create the output directory if it doesn't exist
+            var directory = Path.GetDirectoryName(outputPath);
+            if (!Directory.Exists(directory))
+                Directory.CreateDirectory(directory!);
+
+            // For now we'll save a placeholder file confirming
+            // the frame count — full encoding comes next session
+            await File.WriteAllTextAsync(outputPath,
+                $"Clip captured: {frames.Count} frames at {DateTime.Now}");
+        }
+    }
+}