Update scheduling parameters and refactor channel endpoints: extend HorizonDays to 7 and RetentionDays to 90 in appsettings.json. Consolidate channel-related endpoint logic by removing obsolete files and enhancing the ShowEndpoints with audience and genre management capabilities. Improve error handling and streamline command handlers for channel operations.

backend/src/TeleWave.Infrastructure/Metadata/OmdbMetadataProvider.cs

@@ -62,10 +62,19 @@ public sealed class OmdbMetadataProvider(
             Clean(GetString(root, "Title")) ?? "—",
             YearFrom(GetString(root, "Year")),
             Clean(GetString(root, "Plot")),
-            Clean(GetString(root, "Poster"))
+            Clean(GetString(root, "Poster")),
+            GenresFrom(Clean(GetString(root, "Genre")))
         );
     }
 
+    /// <summary>OMDb отдаёт жанры одной строкой через запятую: «Action, Sci-Fi».</summary>
+    private static List<string> GenresFrom(string? value) =>
+        string.IsNullOrWhiteSpace(value)
+            ? []
+            : value
+                .Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
+                .ToList();
+
     public async Task<EpisodeMetadata?> GetEpisodeAsync(
         string externalId,
         int season,

backend/src/TeleWave.Infrastructure/Metadata/TmdbMetadataProvider.cs

@@ -66,10 +66,32 @@ public sealed class TmdbMetadataProvider(
             GetString(root, "name") ?? "—",
             YearFrom(GetString(root, "first_air_date")),
             GetString(root, "overview"),
-            PosterUrl(GetString(root, "poster_path"))
+            PosterUrl(GetString(root, "poster_path")),
+            GenresFrom(root)
         );
     }
 
+    /// <summary>
+    /// Жанры из ответа TMDb в порядке источника: на каждый — сначала идентификатор
+    /// (<c>tmdb:28</c>), затем локализованное название. Идентификатор точнее, название — запасной
+    /// вариант, если справочник его ещё не знает.
+    /// </summary>
+    private static List<string> GenresFrom(JsonElement root)
+    {
+        var genres = new List<string>();
+        if (!root.TryGetProperty("genres", out var array) || array.ValueKind != JsonValueKind.Array)
+            return genres;
+
+        foreach (var item in array.EnumerateArray())
+        {
+            if (GetInt(item, "id") is { } id)
+                genres.Add($"tmdb:{id.ToString(CultureInfo.InvariantCulture)}");
+            if (GetString(item, "name") is { Length: > 0 } name)
+                genres.Add(name);
+        }
+        return genres;
+    }
+
     public async Task<EpisodeMetadata?> GetEpisodeAsync(
         string externalId,
         int season,