Masse-Dropdown in Oberleiste + Satellite-Settings statt Dimensionen-Inline

User-Feedback: Mass-Style passt nicht ins Dimensionen-Panel, und der
Name "Mass-Style" gefaellt nicht. Umzug in die Oberleiste (analog Display)
+ Zahnrad oeffnet eigenes Settings-Fenster. UI-Begriff jetzt "Masse".

Frontend:
- OberleisteApp: neue Gruppe "Masse" mit Preset-Dropdown + Zahnrad-Button
  zwischen Display und Massstab
- MasseSettingsApp.jsx (neu): Satellite-Fenster mit Name/Raum-Rundung/
  Mass-Dezimalstellen/Mass-Einheit + Picker + Add/Delete
- DimensionenApp: MassStyleSection raus
- rhinoBridge: setMasseActive + openMasseSettings (Topbar);
  masseSetActive/masseSavePreset/masseDeletePreset (Settings-Fenster)

Backend:
- rhino/masse_settings.py (neu): Bridge fuer das Satellite-Fenster,
  Topics SET_ACTIVE / SAVE / DELETE, triggert regen_all_rooms + topbar refresh
- mass_style.regen_all_rooms(doc): neue cross-modul-Helper, queued
  Raum-Regen fuer alle raum_outline-Objekte
- oberleiste.py: massePresets + masseActiveId im State, SET_MASSE_ACTIVE
  + OPEN_MASSE_SETTINGS handler, Signature update
- dimensionen.py: Mass-Style-Endpoints + State raus (sind jetzt im
  OberleisteBridge bzw. MasseSettingsBridge)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/lib/rhinoBridge.js

@@ -171,10 +171,14 @@ export function saveOverridesPreset(name) { send('SAVE_OVERRIDES_PRESET', { name
 export function openOverridesPanel()     { send('OPEN_OVERRIDES_PANEL', {}) }
 export function openKameraPanel()        { send('OPEN_KAMERA_PANEL', {}) }
 
-// --- Mass-Style (Dimensionen-Panel hostet) ---
-export function setMassStyleActive(id)   { send('MASS_STYLE_SET_ACTIVE', { id }) }
-export function saveMassStyle(preset)    { send('MASS_STYLE_SAVE',       { preset }) }
-export function deleteMassStyle(id)      { send('MASS_STYLE_DELETE',     { id }) }
+// --- Masse (in Oberleiste + Satellite-Fenster MasseSettings) ---
+// Topbar: aktives Mass setzen + Settings-Fenster oeffnen
+export function setMasseActive(id)       { send('SET_MASSE_ACTIVE',     { id }) }
+export function openMasseSettings()      { send('OPEN_MASSE_SETTINGS',  {}) }
+// MasseSettings-Fenster: eigene Bridge (Topics ohne MASSE_ prefix)
+export function masseSetActive(id)       { send('SET_ACTIVE',           { id }) }
+export function masseSavePreset(preset)  { send('SAVE',                 { preset }) }
+export function masseDeletePreset(id)    { send('DELETE',               { id }) }
 
 // --- Kamera-Panel ---
 export function setKameraViewport(state) { send('SET_VIEWPORT', { ...state }) }