feat(hub): expose conflict-resolution merge methods

src/ClaudeDo.Worker/Hub/WorkerHub.cs

@@ -56,6 +56,9 @@ public record ForceRemoveResultDto(bool Removed, string? Reason);
 public record MergeResultDto(string Status, IReadOnlyList<string> ConflictFiles, string? ErrorMessage);
 public record MergePreviewDto(string Status, IReadOnlyList<string> ConflictFiles, int ChangedFileCount);
 public record MergeTargetsDto(string DefaultBranch, IReadOnlyList<string> LocalBranches);
+public record MergeConflictsDto(string TaskId, IReadOnlyList<ConflictFileDto> Files);
+public record ConflictFileDto(string Path, IReadOnlyList<ConflictHunkDto> Hunks);
+public record ConflictHunkDto(string Ours, string Theirs, string? Base);
 public record UpdateListDto(string Id, string Name, string? WorkingDir, string DefaultCommitType);
 public record UpdateListConfigDto(string ListId, string? Model, string? SystemPrompt, string? AgentPath, int? MaxTurns = null);
 public record UpdateTaskAgentSettingsDto(string TaskId, string? Model, string? SystemPrompt, string? AgentPath, int? MaxTurns = null);
@@ -328,6 +331,49 @@ public sealed class WorkerHub : Microsoft.AspNetCore.SignalR.Hub
             return new MergePreviewDto(p.Status, p.ConflictFiles, p.ChangedFileCount);
         });
 
+    public Task<MergeResultDto> StartConflictMerge(string taskId, string targetBranch)
+        => HubGuard(async () =>
+        {
+            var r = await _mergeService.MergeAsync(
+                taskId, targetBranch ?? "", removeWorktree: false, "Merge task",
+                leaveConflictsInTree: true, CancellationToken.None);
+            if (r.Status == TaskMergeService.StatusBlocked)
+                throw new HubException(r.ErrorMessage ?? "merge blocked");
+            return new MergeResultDto(r.Status, r.ConflictFiles, r.ErrorMessage);
+        });
+
+    public Task<MergeConflictsDto> GetMergeConflicts(string taskId)
+        => HubGuard(async () =>
+        {
+            var c = await _mergeService.GetConflictsAsync(taskId, CancellationToken.None);
+            return new MergeConflictsDto(
+                c.TaskId,
+                c.Files.Select(f => new ConflictFileDto(
+                    f.Path,
+                    new[] { new ConflictHunkDto(f.Ours, f.Theirs, f.Base) })).ToList());
+        });
+
+    public Task WriteConflictResolution(string taskId, string path, string resolvedContent)
+        => HubGuard(() => _mergeService.WriteResolutionAsync(
+            taskId, path, resolvedContent ?? "", CancellationToken.None));
+
+    public Task<MergeResultDto> ContinueMerge(string taskId)
+        => HubGuard(async () =>
+        {
+            var r = await _mergeService.ContinueMergeAsync(taskId, CancellationToken.None);
+            if (r.Status == TaskMergeService.StatusBlocked)
+                throw new HubException(r.ErrorMessage ?? "continue failed");
+            return new MergeResultDto(r.Status, r.ConflictFiles, r.ErrorMessage);
+        });
+
+    public Task AbortMerge(string taskId)
+        => HubGuard(async () =>
+        {
+            var r = await _mergeService.AbortMergeAsync(taskId, CancellationToken.None);
+            if (r.Status == TaskMergeService.StatusBlocked)
+                throw new HubException(r.ErrorMessage ?? "abort failed");
+        });
+
     public async Task UpdateList(UpdateListDto dto)
     {
         using var ctx = _dbFactory.CreateDbContext();