Merge claudedo/20c78c9558cf4c4fa598a00c7cac374f

src/ClaudeDo.Data/PromptFiles.cs

@@ -168,6 +168,12 @@ public static class PromptFiles
         - sonnet — normal coding work; the sensible default when unsure.
         - opus — only for genuinely complex, cross-cutting, or hard-to-debug work.
         Do not default everything to opus — most subtasks are haiku or sonnet.
+
+        Only for a subtask you can tell will need noticeably more turns than the
+        default budget (a large or sprawling piece of work), also pass CreateChildTask's
+        `maxTurns` argument with a generous turn count, so the run doesn't die mid-work
+        at the turn limit. Leave `maxTurns` null for everything else — it inherits the
+        list/global default.
         """;
 
     private const string PlanningInitialDefault = """

src/ClaudeDo.Data/Repositories/TaskRepository.cs

@@ -276,8 +276,12 @@ public sealed class TaskRepository
         string? commitType,
         string? createdBy = null,
         string? model = null,
+        int? maxTurns = null,
         CancellationToken ct = default)
     {
+        if (maxTurns.HasValue && maxTurns.Value <= 0)
+            throw new ArgumentException($"maxTurns must be positive, got {maxTurns.Value}.");
+
         // AsNoTracking: SetPlanningStartedAsync mutates via ExecuteUpdate which
         // bypasses the change tracker; a tracked Find would return stale data.
         var parent = await _context.Tasks.AsNoTracking()
@@ -303,6 +307,7 @@ public sealed class TaskRepository
             SortOrder = (maxSort ?? -1) + 1,
             CreatedBy = createdBy,
             Model = ModelRegistry.NormalizeAlias(model),
+            MaxTurns = maxTurns,
         };
         _context.Tasks.Add(child);
         await _context.SaveChangesAsync(ct);