Chat settings: timestamps, compact mode, font size and badges now also live in the OpenVibe.Network user module chat.preferences, through OpenVibe.Chat's /api/chat/preferences. After Live's own copy loads, the Network record wins for those four; with no record yet the browser's values seed it; every save sends them too. The other chat settings stay in /api/auth/preferences until the module schema has fields for them

ddiff --git a/public/js/chat.js b/public/js/chat.js
iindex 1fcedb32..7eb9d1b1 100644
---- a/public/js/chat.js
++++ b/public/js/chat.js
@@@ -277,6 +277,51 @@ function saveChatSettings() {
      _debounceSyncSettingsToServer();
  }
  
++// Portable chat preferences live in OpenVibe.Network (user module chat.preferences), read and written
++// through OpenVibe.Chat at /api/chat/preferences. Only these four settings have fields there (schema v1);
++// the rest of chatSettings stays in Live's /api/auth/preferences. A patch value of null removes the
++// field, i.e. "Live's default"; Chat writes nothing when nothing changed.
++const CHAT_PREFS_FONT_SCALE = { small: 0.88, large: 1.18 };
++function _chatPrefsFromSettings(s) {
++    return {
++        timestamps: s.showTimestamps ? true : null,
++        compact: s.compactMode ? true : null,
++        font_scale: CHAT_PREFS_FONT_SCALE[s.fontSize] || null,
++        show_badges: s.showBadges === false ? false : null,
++    };
++}
++function _chatSettingsFromPrefs(p) {
++    const out = {
++        showTimestamps: p.timestamps === true,
++        compactMode: p.compact === true,
++        fontSize: 'default',
++        showBadges: p.show_badges !== false,
++    };
++    if (typeof p.font_scale === 'number') out.fontSize = p.font_scale < 0.95 ? 'small' : p.font_scale > 1.05 ? 'large' : 'default';
++    return out;
++}
++function _pushChatPrefs(token) {
++    return fetch('/api/chat/preferences', {
++        method: 'PUT',
++        headers: { 'Content-Type': 'application/json', 'Authorization': `Bearer ${token}` },
++        body: JSON.stringify({ preferences: _chatPrefsFromSettings(chatSettings) }),
++    }).catch(() => { /* Chat or Network unavailable: Live's copy still has them */ });
++}
++/** After Live's copy: the Network record wins for its fields; none yet → seed it from this browser. */
++function _syncChatPrefsFromChat(token) {
++    fetch('/api/chat/preferences', { headers: { 'Authorization': `Bearer ${token}` } })
++        .then(r => r.ok ? r.json() : null)
++        .then(data => {
++            if (!data || !data.preferences || typeof data.preferences !== 'object') return;
++            if (!data.revision) { _pushChatPrefs(token); return; }
++            chatSettings = { ...chatSettings, ..._chatSettingsFromPrefs(data.preferences) };
++            try { localStorage.setItem(CHAT_SETTINGS_KEY, JSON.stringify(chatSettings)); } catch { }
++            applyChatSettings();
++            syncSettingsPanelUI();
++        })
++        .catch(() => { /* offline — use local */ });
++}
++
  function _syncSettingsFromServer() {
      const token = localStorage.getItem('token');
      if (!token) return;
@@@ -293,7 +338,8 @@ function _syncSettingsFromServer() {
                  syncTTSToggleButtons();
              }
          })
--        .catch(() => { /* offline — use local */ });
++        .catch(() => { /* offline — use local */ })
++        .finally(() => _syncChatPrefsFromChat(token));
  }
  
  function _debounceSyncSettingsToServer() {
@@@ -306,6 +352,7 @@ function _debounceSyncSettingsToServer() {
              headers: { 'Content-Type': 'application/json', 'Authorization': `Bearer ${token}` },
              body: JSON.stringify({ chatSettings })
          }).catch(() => { /* silent fail */ });
++        _pushChatPrefs(token);
      }, 500);
  }