Refactor .gitignore to streamline ignored files and enhance clarity. Update CLAUDE.md to improve unit test instructions and add coverage reporting details. Revise README.md for better project overview and deployment instructions. Refactor ChannelEndpoints and StreamingEndpoints to utilize SegmentFiles for file resolution, improving code maintainability. Remove unused JunctionHandlers and update DependencyInjection for cleaner service registration. Enhance media processing services for better job handling and error management. Update frontend API types for consistency and clarity.

backend/src/TeleWave.Api/Endpoints/StreamingEndpoints.cs

@@ -1,6 +1,5 @@
 using System.Globalization;
 using System.Text;
-using System.Text.RegularExpressions;
 using LiteCqrs;
 using Microsoft.Extensions.Hosting;
 using TeleWave.Api.Common;
@@ -17,7 +16,6 @@ namespace TeleWave.Api.Endpoints;
 public static class StreamingEndpoints
 {
     private const string StreamCookieName = "tw_stream";
-    private static readonly Regex SegmentFileName = new(@"^seg\d{1,6}\.ts$", RegexOptions.Compiled);
 
     public static IEndpointRouteBuilder MapStreamingEndpoints(this IEndpointRouteBuilder app)
     {
@@ -143,20 +141,10 @@ public static class StreamingEndpoints
     {
         if (tokens.Validate(request.Cookies[StreamCookieName]) is null)
             return Results.Unauthorized();
-        if (!SegmentFileName.IsMatch(file))
+        if (!SegmentFiles.IsSegmentName(file))
             return Results.NotFound();
 
-        string path;
-        try
-        {
-            path = paths.SegmentPath(assetId, file);
-        }
-        catch (UnauthorizedAccessException)
-        {
-            return Results.NotFound();
-        }
-
-        if (!File.Exists(path))
+        if (SegmentFiles.TryResolveExisting(paths, assetId, file) is not { } path)
             return Results.NotFound();
 
         response.Headers.CacheControl = "public, max-age=31536000, immutable";