feat: node workflow redesign — wizard auto-config, reset, MusicBrainz contact

Wizard (Electron):
- Auto-provisions node config (hub URL + username) from logged-in user
- node:start handles both cold start and restart of misconfigured daemon
- Waits for daemon to reach 'running', auto-links node key on hub
- probeNode accepts intermediate states for wizard progress feedback

Reset (meshbay-node reset):
- Unlinks node key from hub (DELETE /me/node_key, best-effort)
- Stops and disables daemon (systemctl --user disable --now)
- Erases ~/.config/meshbay, ~/.local/share/meshbay, ~/.local/state/meshbay

MusicBrainz contact:
- Resolved from owner's hub email instead of per-node roster config
- Removed musicbrainz_contact UI and WebRTC handshake field
- Removed set_musicbrainz_contact/musicbrainz_contact from roster

Node pairing:
- Added operator pairing banner on NodePage
- Added operator_paired flag to list_groups

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 1 insertions, 57 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js b/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
index 59d1456..4f55dfb 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/group-settings.js
@@ -191,7 +191,7 @@ function GroupSettingsPanel({ groupId, group, token, transportRef, gekRef,
                              enabledApps, onEnabledApps,
                              scanSettings, onScanSettings,
                              tmdbConfig, onTmdbConfig, onTmdbEnabled,
-                             musicbrainzConfig, onMusicbrainzConfig, onMusicbrainzEnabled,
+                             musicbrainzConfig, onMusicbrainzEnabled,
                              entries, nodeDirs, videoRoot, onVideoRoot,
                              audioRoot, onAudioRoot,
                              photoRoots, onPhotoRoots, onRefreshIndex,
@@ -548,9 +548,7 @@ function GroupSettingsPanel({ groupId, group, token, transportRef, gekRef,
     saveTmdbConfig();
   }, [isNodeAdmin, connected, tmdbConfig, saveTmdbConfig]);
 
-  const [mbBusy, setMbBusy] = useState(false);
   const [mbMsg, setMbMsg] = useState('');
-  const [mbContactDraft, setMbContactDraft] = useState('');
   const [mbEnabledBusy, setMbEnabledBusy] = useState(false);
   const mbEnabled = musicbrainzConfig ? musicbrainzConfig.enabled : true;
 
@@ -579,43 +577,6 @@ function GroupSettingsPanel({ groupId, group, token, transportRef, gekRef,
     }
   }, [transportRef, onMusicbrainzEnabled]);
 
-  /**
-   * The node-wide MusicBrainz contact string (docs/musicbay.md §3.2) — not
-   * a secret, unlike TMDB's token, but still cleared from the draft field
-   * after a save: the node never echoes it back
-   * (musicbrainz_config_ack carries only whether one is set), so there is
-   * nothing to keep showing.
-   */
-  const saveMusicbrainzConfig = useCallback(async () => {
-    const transport = transportRef && transportRef.current;
-    setMbMsg('');
-    setMbBusy(true);
-    try {
-      if (!transport || !transport.connected) {
-        throw new Error('Not connected to the node');
-      }
-      const sk = transport.sessionKeys && transport.sessionKeys.skEdB64;
-      const signFn = (sk && window.MeshBayKeys)
-        ? (transcript) => window.MeshBayKeys.signBytes(sk, transcript)
-        : null;
-      const contact = mbContactDraft.trim();
-      await transport.setMusicbrainzConfig(contact || undefined, signFn);
-      setMbContactDraft('');
-      if (onMusicbrainzConfig) {
-        onMusicbrainzConfig({
-          contactConfigured: contact
-            ? true
-            : (musicbrainzConfig ? musicbrainzConfig.contactConfigured : false),
-        });
-      }
-      setMbMsg(t('settings_node.scan_saved'));
-    } catch (err) {
-      setMbMsg(err.message);
-    } finally {
-      setMbBusy(false);
-    }
-  }, [transportRef, onMusicbrainzConfig, mbContactDraft, musicbrainzConfig]);
-
   // Every folder anywhere in the group's shared index, deepest included —
   // `entries[].path` is each file's containing directory (files-app.js's own
   // convention), so every ancestor prefix of it is a real folder, and
@@ -1033,23 +994,6 @@ function GroupSettingsPanel({ groupId, group, token, transportRef, gekRef,
               onChange=${(v) => saveMusicbrainzEnabled(v)}
               label=${mbEnabled ? t('settings_node.musicbrainz_enabled') : t('settings_node.musicbrainz_disabled')} />
           </div>
-          <div class="settings-row">
-            <label class="settings-label">
-              ${t('settings_node.musicbrainz_contact_label')}
-              <input type="text" placeholder=${t('settings_node.musicbrainz_contact_placeholder')}
-                value=${mbContactDraft} disabled=${mbBusy}
-                onInput=${e => setMbContactDraft(e.target.value)} />
-            </label>
-            <p class="settings-hint">
-              ${musicbrainzConfig && musicbrainzConfig.contactConfigured
-                ? t('settings_node.musicbrainz_contact_set')
-                : t('settings_node.musicbrainz_contact_unset')}
-            </p>
-          </div>
-          <button class="btn btn-small btn-secondary" style="margin-top:8px"
-            disabled=${mbBusy} onClick=${() => saveMusicbrainzConfig()}>
-            ${mbBusy ? t('settings_node.scan_saving') : t('settings_node.musicbrainz_save')}
-          </button>
           ${mbMsg && html`<p class="settings-hint">${mbMsg}</p>`}
         </${CollapsibleSection}>
       `}