fix: update docs and barrel imports for task_system default

src/hooks/tasks-todowrite-disabler/hook.ts

@@ -1,4 +1,4 @@
-import { isTaskSystemEnabled } from "../../shared/task-system-enabled";
+import { isTaskSystemEnabled } from "../../shared";
 import { BLOCKED_TOOLS, REPLACEMENT_MESSAGE } from "./constants";
 
 export interface TasksTodowriteDisablerConfig {

src/plugin-handlers/tool-config-handler.ts

@@ -1,6 +1,6 @@
 import type { OhMyOpenCodeConfig } from "../config";
 import { getAgentDisplayName, getAgentListDisplayName } from "../shared/agent-display-names";
-import { isTaskSystemEnabled } from "../shared/task-system-enabled";
+import { isTaskSystemEnabled } from "../shared";
 
 type AgentWithPermission = { permission?: Record<string, unknown> };