feat: production deployment - full update with providers, admin, glossaries, pricing, tests

Major changes across backend, frontend, infrastructure:
- Provider system with model selection (Google, DeepL, OpenAI, Ollama, Google Cloud)
- Admin panel: user management, pricing, settings
- Glossary system with CSV import/export
- Subscription and tier quota management
- Security hardening (rate limiting, API key auth, path traversal fixes)
- Docker compose for dev, prod, and IONOS deployment
- Alembic migrations for new tables
- Frontend: dashboard, pricing page, landing page, i18n (en/fr)
- Test suite and verification scripts

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/app/dashboard/glossaries/page.tsx

@@ -6,6 +6,7 @@ import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/com
 import { Button } from '@/components/ui/button';
 import { Separator } from '@/components/ui/separator';
 import { useUser } from '@/app/dashboard/useUser';
+import { useI18n } from '@/lib/i18n';
 import { useGlossaries, useGlossary } from './useGlossaries';
 import type { Glossary, GlossaryTermInput, GlossaryListItem } from './types';
 import { ProUpgradePrompt } from './ProUpgradePrompt';
@@ -16,6 +17,7 @@ import { DeleteGlossaryDialog } from './DeleteGlossaryDialog';
 import { useToast } from '@/components/ui/toast';
 
 export default function GlossariesPage() {
+  const { t } = useI18n();
   const { data: user, isLoading: isLoadingUser } = useUser();
   const {
     glossaries,
@@ -24,9 +26,11 @@ export default function GlossariesPage() {
     isCreating,
     isUpdating,
     isDeleting,
+    isImportingTemplate,
     createGlossary,
     updateGlossary,
     deleteGlossary,
+    importTemplate,
   } = useGlossaries();
   const { toast } = useToast();
 
@@ -62,14 +66,34 @@ export default function GlossariesPage() {
       await createGlossary(data);
       setCreateDialogOpen(false);
       toast({
-        title: 'Glossary created',
-        description: `"${data.name}" has been created successfully.`,
+        title: t('glossaries.toast.created'),
+        description: t('glossaries.toast.createdDesc', { name: data.name }),
       });
     } catch (error) {
       toast({
         variant: 'destructive',
-        title: 'Error',
-        description: 'Failed to create glossary. Please try again.',
+        title: t('glossaries.toast.error'),
+        description: t('glossaries.toast.errorCreate'),
+      });
+      throw error;
+    }
+  };
+
+  const handleImportTemplate = async (templateId: string, name?: string) => {
+    try {
+      await importTemplate(templateId, name);
+      setCreateDialogOpen(false);
+      toast({
+        title: t('glossaries.toast.imported'),
+        description: name
+          ? t('glossaries.toast.importedDesc', { name })
+          : t('glossaries.toast.importedDesc', { name: templateId }),
+      });
+    } catch (error) {
+      toast({
+        variant: 'destructive',
+        title: t('glossaries.toast.error'),
+        description: t('glossaries.toast.errorImport'),
       });
       throw error;
     }
@@ -81,14 +105,14 @@ export default function GlossariesPage() {
       setEditDialogOpen(false);
       setSelectedGlossary(null);
       toast({
-        title: 'Glossary updated',
-        description: `"${data.name}" has been updated successfully.`,
+        title: t('glossaries.toast.updated'),
+        description: t('glossaries.toast.updatedDesc', { name: data.name }),
       });
     } catch (error) {
       toast({
         variant: 'destructive',
-        title: 'Error',
-        description: 'Failed to update glossary. Please try again.',
+        title: t('glossaries.toast.error'),
+        description: t('glossaries.toast.errorUpdate'),
       });
       throw error;
     }
@@ -101,14 +125,14 @@ export default function GlossariesPage() {
       setDeleteDialogOpen(false);
       setGlossaryToDelete(null);
       toast({
-        title: 'Glossary deleted',
-        description: 'The glossary has been deleted successfully.',
+        title: t('glossaries.toast.deleted'),
+        description: t('glossaries.toast.deletedDesc'),
       });
     } catch (error) {
       toast({
         variant: 'destructive',
-        title: 'Error',
-        description: 'Failed to delete glossary. Please try again.',
+        title: t('glossaries.toast.error'),
+        description: t('glossaries.toast.errorDelete'),
       });
     }
   };
@@ -131,10 +155,8 @@ export default function GlossariesPage() {
   return (
     <div className="space-y-6 p-6">
       <div>
-        <h1 className="text-2xl font-semibold tracking-tight">Glossaries</h1>
-        <p className="text-muted-foreground">
-          Manage custom terminology for your LLM translations.
-        </p>
+        <h1 className="text-2xl font-semibold tracking-tight">{t('glossaries.title')}</h1>
+        <p className="text-muted-foreground">{t('glossaries.description')}</p>
       </div>
 
       <Card>
@@ -144,8 +166,8 @@ export default function GlossariesPage() {
               <BookText className="size-4 text-accent" />
             </div>
             <div>
-              <CardTitle className="text-base">Your Glossaries</CardTitle>
-              <CardDescription>Create and manage glossaries for consistent translations</CardDescription>
+              <CardTitle className="text-base">{t('glossaries.yourGlossaries')}</CardTitle>
+              <CardDescription>{t('glossaries.yourGlossariesDesc')}</CardDescription>
             </div>
           </div>
         </CardHeader>
@@ -154,11 +176,9 @@ export default function GlossariesPage() {
           <div className="flex items-center justify-between">
             <div>
               <p className="text-sm font-medium">
-                {total} glossarie{total !== 1 ? 's' : ''}
-              </p>
-              <p className="text-xs text-muted-foreground">
-                Define term pairs to customize your LLM translations
+                {t(total !== 1 ? 'glossaries.count_other' : 'glossaries.count_one', { count: String(total) })}
               </p>
+              <p className="text-xs text-muted-foreground">{t('glossaries.defineTerms')}</p>
             </div>
             <Button
               onClick={() => setCreateDialogOpen(true)}
@@ -166,17 +186,15 @@ export default function GlossariesPage() {
               className="gap-1.5"
             >
               <Plus className="size-3.5" />
-              Create New Glossary
+              {t('glossaries.createNew')}
             </Button>
           </div>
 
           {glossaries.length === 0 ? (
             <div className="text-center py-8">
               <BookText className="size-12 mx-auto text-muted-foreground/50 mb-4" />
-              <p className="text-muted-foreground">No glossaries yet</p>
-              <p className="text-sm text-muted-foreground/80">
-                Create your first glossary to customize translations
-              </p>
+              <p className="text-muted-foreground">{t('glossaries.empty')}</p>
+              <p className="text-sm text-muted-foreground/80">{t('glossaries.emptyDesc')}</p>
             </div>
           ) : (
             <div className="grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
@@ -198,15 +216,11 @@ export default function GlossariesPage() {
 
       <Card className="border-border/50">
         <CardHeader>
-          <CardTitle className="text-sm">About Glossaries</CardTitle>
+          <CardTitle className="text-sm">{t('glossaries.aboutTitle')}</CardTitle>
         </CardHeader>
         <CardContent className="text-sm text-muted-foreground space-y-2">
-          <p>
-            Glossaries let you define custom terminology for your translations. When using LLM translation modes, your terms will be applied to ensure consistent translations.
-          </p>
-          <p>
-            <strong>Format:</strong> Each term has a source (original) and target (translation) pair.
-          </p>
+          <p>{t('glossaries.aboutDesc')}</p>
+          <p><strong>{t('glossaries.aboutFormat')}</strong></p>
         </CardContent>
       </Card>
 
@@ -214,7 +228,9 @@ export default function GlossariesPage() {
         open={createDialogOpen}
         onOpenChange={setCreateDialogOpen}
         onCreate={handleCreateGlossary}
+        onImportTemplate={handleImportTemplate}
         isCreating={isCreating}
+        isImportingTemplate={isImportingTemplate}
       />
 
       {editDialogOpen && (fullGlossary || !isLoadingGlossaryDetail) && (