feat(worker): branch type and number rules for task branches

src/ClaudeDo.Worker/Runner/WorktreeManager.cs

@@ -38,12 +38,29 @@ public sealed class WorktreeManager
     private Task BroadcastCreating(string taskId) =>
         _broadcaster?.OperationProgress(taskId, PhaseCreatingWorktree, 0, 0) ?? Task.CompletedTask;
 
-    /// <summary>Branch leaf and folder name for a task worktree: <c>{number}-{title-slug}</c>, unique via the task number.</summary>
-    public static string NameFor(TaskEntity task)
+    /// <summary>
+    /// Branch leaf and folder name: <c>{nummer}-{slug}</c>. Nummer = Ticket-Id, sonst die Task-Nummer —
+    /// außer im Firmen-Repo ohne Ticket, dort sähe sie wie eine Ticket-Id aus und entfällt.
+    /// </summary>
+    public static string NameFor(TaskEntity task, int? ticketId, bool isCompanyRepo)
     {
         var titleSlug = CommitMessageBuilder.ToSlug(task.Title);
         if (titleSlug.Length > 40) titleSlug = titleSlug[..40].TrimEnd('-');
-        return titleSlug.Length == 0 ? task.Number.ToString() : $"{task.Number}-{titleSlug}";
+        var number = ticketId?.ToString() ?? (isCompanyRepo ? null : task.Number.ToString());
+        if (titleSlug.Length == 0) return number ?? task.Number.ToString();
+        return number is null ? titleSlug : $"{number}-{titleSlug}";
+    }
+
+    /// <summary>Branch-Präfix nach work-conventions: <c>feat</c> → <c>feature</c>, Typen ohne eigenes Präfix → <c>chore</c>.</summary>
+    public static string BranchTypeFor(string? commitType)
+    {
+        var t = (commitType ?? "").Trim().ToLowerInvariant();
+        return t switch
+        {
+            "feat" => "feature",
+            "fix" or "refactor" or "docs" or "test" or "chore" => t,
+            _ => "chore",
+        };
     }
 
     public async Task<WorktreeContext> CreateAsync(TaskEntity task, ListEntity list, CancellationToken ct)
@@ -59,7 +76,7 @@ public sealed class WorktreeManager
             _logger.LogInformation("Repository at {Dir} had no commits; created an empty bootstrap commit", workingDir);
 
         var baseCommit = await ResolveBaseCommitAsync(task, workingDir, ct);
-        var name = NameFor(task);
+        var name = NameFor(task, null, false);
         var slug = CommitMessageBuilder.ToSlug(list.Name);
 
         string strategy;