feat(ui): badge version visible + FAB AI flottant

frontend/js/app.js

@@ -5,6 +5,8 @@
 import * as UI from './ui.js';
 import * as Utils from './utils.js';
 import { initI18n, t } from './i18n.js';
+import { state } from './state.js';
+import { initAIFab } from './ai-fab.js';
 
 // Wire up AI toolbar toast (avoids circular import in utils.js)
 window._obsigateShowToast = UI.showToast;
@@ -99,6 +101,7 @@ async function init() {
   initMermaid();
   setupFocusMode();
   Utils.safeCreateIcons();
+  initAIFab();
 }
 
 document.addEventListener("DOMContentLoaded", () => {
@@ -111,15 +114,16 @@ document.addEventListener("DOMContentLoaded", () => {
     window.__OBSIGATE_BOOTED = true;
     if (typeof window.__obsigateBootReady === "function") window.__obsigateBootReady();
   }
-  // Show version in header
+  // Show version in header — always visible, fallback before the async fetch
+  const versionBadge = document.getElementById('version-badge');
+  if (versionBadge) {
+    versionBadge.textContent = window.__OBSIGATE_VERSION || state.APP_VERSION || 'dev';
+  }
   fetch('/api/health')
     .then(r => r.json())
     .then(d => {
       const badge = document.getElementById('version-badge');
-      if (badge && d.version) {
-        badge.textContent = d.version;
-        badge.style.display = 'inline-block';
-      }
+      if (badge && d.version) badge.textContent = d.version;
     })
     .catch(() => {});
 });