Real YouTube download & MP3 conversion with yt-dlp

- Integrate yt-dlp.exe for real YouTube audio download/conversion
- Serve actual MP3 files from wwwroot/downloads via API and static files
- Report real-time progress from yt-dlp to frontend
- Enhance DownloadController: file serving, metadata, deletion endpoints
- Update VideoController to track and return real file info/URLs
- Enable static file serving in Program.cs; update API info/logging
- Update Blazor frontend to use real download URLs and remove old JS logic
- Add README_UPDATED.md with new workflow and troubleshooting
- Improve error handling, logging, and file cleanup throughout backend
- Update .gitignore for downloads and yt-dlp.exe

TuneRipper.Api/Program.cs

@@ -5,6 +5,9 @@ var builder = WebApplication.CreateBuilder(args);
 // Add services to the container.
 builder.Services.AddControllers();
 
+// Add HttpClient services
+builder.Services.AddHttpClient();
+
 // Register services
 builder.Services.AddScoped<IVideoService, VideoService>();
 
@@ -32,6 +35,9 @@ if (app.Environment.IsDevelopment())
 
 app.UseHttpsRedirection();
 
+// Enable static files serving (for downloading MP3 files)
+app.UseStaticFiles();
+
 // Enable CORS
 app.UseCors("BlazorPolicy");
 
@@ -58,6 +64,7 @@ app.MapGet("/", (IWebHostEnvironment env) => new
         check_status = "/api/video/status/{jobId}",
         get_result = "/api/video/result/{jobId}",
         download = "/api/download/{jobId}",
+        static_files = "/downloads/{fileName}",
         openapi = "/openapi/v1.json"
     },
     testing = new
@@ -77,5 +84,6 @@ app.Logger.LogInformation("
 app.Logger.LogInformation("   • HTTP: http://localhost:5112");
 app.Logger.LogInformation("?? Health check: /api/health");
 app.Logger.LogInformation("?? API info: /");
+app.Logger.LogInformation("?? Static files served from: /downloads/*");
 
 app.Run();