Update shared/permissions.ts to add 'create' permission to manager role for tasks module. Also, add a permission check in server/routes.ts before creating a task.
Replit-Commit-Author: Agent
Replit-Commit-Session-Id: f2b9c241-9fdd-4abd-9041-720afc8b27d6
Replit-Commit-Checkpoint-Type: full_checkpoint