Function readJSON

notes.js:14–22

(key, fallback)

    };

    function readJSON(key, fallback) {
        try {
            const raw = localStorage.getItem(key);
            if (!raw) return fallback;
            return JSON.parse(raw);
        } catch (e) {
            return fallback;
        }
    }

    function writeJSON(key, value) {
        try {