ux(glossaries): simplify dialog, auto-save detail import, show templates and upload zone directly on main page

frontend/src/app/dashboard/glossaries/[id]/page.tsx

@@ -237,6 +237,7 @@ export default function GlossaryDetailPage() {
   const handleImportClick = () => fileInputRef.current?.click();
 
   const handleFileChange = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    if (!glossary) return;
     const file = e.target.files?.[0];
     if (!file) return;
     e.target.value = '';
@@ -260,17 +261,24 @@ export default function GlossaryDetailPage() {
         });
         return;
       }
+      // Auto-save immediately to DB
+      await updateGlossary(glossary.id, {
+        name: name.trim(),
+        source_language: sourceLanguage,
+        target_language: targetLanguage,
+        terms: parsed,
+      });
       setTerms(parsed);
       toast({
         title: t('glossaries.detail.importedTitle') || 'Importé',
         description: t('glossaries.detail.importedDesc', { count: String(parsed.length) }) ||
-          `${parsed.length} termes importés.`,
+          `${parsed.length} termes importés et enregistrés.`,
       });
     } catch {
       toast({
         variant: 'destructive',
-        title: t('glossaries.detail.importErrorTitle') || 'Erreur',
-        description: t('glossaries.detail.importErrorDesc') || 'Impossible de lire le fichier.',
+        title: t('glossaries.toast.error') || 'Erreur',
+        description: t('glossaries.toast.errorUpdate') || 'Impossible de mettre à jour le glossaire.',
       });
     }
   };