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, 6 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/group-page.js b/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
index 5a2a79b..dac0f45 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
@@ -94,8 +94,7 @@ function GroupPage({ groupId, group, token, username, userId, userPrefs,
   // above (docs/photos.md §2.1: a photo library is routinely scattered
   // across several folders). Empty means nothing configured yet.
   const [photoRoots, setPhotoRoots] = useState([]);
-  // MusicBrainz on/off (per-group) + whether a contact string is configured
-  // (node-wide) — docs/musicbay.md §3.2, same shape as tmdbConfig above.
+  // MusicBrainz on/off (per-group) — docs/musicbay.md §3.2.
   const [musicbrainzConfig, setMusicbrainzConfig] = useState(null);
   const onPlayQueue = useCallback((tracks, startIndex) => {
     setVideoEntry(null);
@@ -245,7 +244,6 @@ function GroupPage({ groupId, group, token, username, userId, userPrefs,
         setPhotoRoots(ack.photo_roots || []);
         setMusicbrainzConfig({
           enabled: ack.musicbrainz_enabled !== false,
-          contactConfigured: !!ack.musicbrainz_contact_configured,
         });
         // Changed while we are connected, by an operator who may be someone
         // else entirely. Without this the button stays until a reconnection,
@@ -262,8 +260,6 @@ function GroupPage({ groupId, group, token, username, userId, userPrefs,
         transport.onVideoRoot = (path) => setVideoRoot(path);
         transport.onAudioRoot = (path) => setAudioRoot(path);
         transport.onPhotoRoots = (roots) => setPhotoRoots(roots);
-        transport.onMusicbrainzConfig = (cfg) =>
-          setMusicbrainzConfig((prev) => ({ ...(prev || {}), ...cfg }));
         transport.onMusicbrainzEnabled = (enabled) =>
           setMusicbrainzConfig((prev) => ({ ...(prev || {}), enabled }));
         // The node's own scan (a root added while we were already connected,
@@ -599,7 +595,6 @@ function GroupPage({ groupId, group, token, username, userId, userPrefs,
             onTmdbConfig=${(cfg) => setTmdbConfig((prev) => ({ ...(prev || {}), ...cfg }))}
             onTmdbEnabled=${(enabled) => setTmdbConfig((prev) => ({ ...(prev || {}), enabled }))}
             musicbrainzConfig=${musicbrainzConfig}
-            onMusicbrainzConfig=${(cfg) => setMusicbrainzConfig((prev) => ({ ...(prev || {}), ...cfg }))}
             onMusicbrainzEnabled=${(enabled) => setMusicbrainzConfig((prev) => ({ ...(prev || {}), enabled }))}
             entries=${entries} nodeDirs=${nodeDirs}
             videoRoot=${videoRoot}