refactor(manager): replace internal CMS HTTP layer with direct CmsTrackService calls

DeepDrftManager/Services/ICmsTrackService.cs

@@ -0,0 +1,38 @@
+using DeepDrftModels.Entities;
+using NetBlocks.Models;
+
+namespace DeepDrftManager.Services;
+
+/// <summary>
+/// CMS-side track mutations for the Manager host. Coordinates the dual-database write:
+/// SQL metadata via <c>ITrackService</c> and binary audio in DeepDrftContent's vault over HTTP.
+/// DeepDrftManager intentionally does not reference DeepDrftContent.Services (CMS-PLAN §5,
+/// Option B) — all vault access is over the network to DeepDrftContent.
+/// </summary>
+public interface ICmsTrackService
+{
+    /// <summary>
+    /// Proxy a WAV upload to DeepDrftContent, then persist the returned metadata to SQL.
+    /// On success the returned entity carries the SQL-assigned <c>Id</c>. If the vault write
+    /// succeeds but the SQL persist fails, the audio is orphaned under <c>EntryKey</c> — the
+    /// failure is logged loudly and surfaced as a failed result.
+    /// </summary>
+    Task<ResultContainer<TrackEntity>> UploadTrackAsync(
+        Stream wavStream,
+        string fileName,
+        string contentType,
+        string trackName,
+        string artist,
+        string? album,
+        string? genre,
+        string? releaseDate,
+        long createdByUserId,
+        CancellationToken ct = default);
+
+    /// <summary>
+    /// Delete a track's SQL row, then its vault entry. SQL is the source of truth: a SQL
+    /// delete failure fails the operation, but a subsequent vault delete failure is logged
+    /// and swallowed (the orphan is a maintenance concern, not a user-facing error).
+    /// </summary>
+    Task<Result> DeleteTrackAsync(long id, CancellationToken ct = default);
+}