feat: AI SEO generator, full admin panel, i18n sweep, new logo + auth/RTL fixes

AI SEO content generator
- content-svc: per-tenant OpenAI config (ai_settings) + /v1/ai endpoints
  (settings GET/PUT, seo-post) with SEO-expert prompt → structured article
- admin UI to configure token/base-url/model and generate + save as blog
- configurable base URL for restricted networks

Full data-driven admin panel
- generic /api/admin/resource proxy + reusable AdminResource component
- categories/tags/fonts/blogs (CRUD), users (list + ban), plans/slides
- AI content section; nav + i18n

i18n localization sweep
- localized 116 user-facing + studio/editor components to next-intl (fa+en)
  under the auto.* namespace; merge tooling in scripts/merge-i18n.js

Branding + assets
- Monoline F logo (LogoMark + favicon)
- offline SVG placeholder generator (/api/placeholder), dropped picsum.photos

Fixes
- JWT issuer mismatch on content/studio (flatrender → flatrender-identity)
- missing role claim → [Authorize(Roles="Admin")] now works (RBAC)
- Secure cookies broke HTTP sessions → gated behind AUTH_COOKIE_SECURE
- Radix RTL via DirectionProvider (right-aligned menus in fa)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/components/studio/sidebar/FontSidebarContent.tsx

@@ -1,5 +1,6 @@
 "use client";
 
+import { useTranslations } from "next-intl";
 import { useState } from "react";
 
 import { PropertySelect } from "@/components/studio/properties/PropertyControls";
@@ -9,6 +10,7 @@ import { FONT_FAMILY_OPTIONS } from "@/lib/studio-layer-props";
 import { useStudioStore } from "@/lib/studio-store";
 
 export function FontSidebarContent() {
+  const t = useTranslations("auto.componentsStudioSidebarFontSidebarContent");
   const applyFontFamilyToAllTextLayers = useStudioStore(
     (state) => state.applyFontFamilyToAllTextLayers
   );
@@ -23,14 +25,14 @@ export function FontSidebarContent() {
       className="w-full border-gray-200 bg-white text-gray-700 hover:bg-gray-50 hover:text-gray-900"
       onClick={() => applyFontFamilyToAllTextLayers(fontFamily)}
     >
-      Apply to all text layers
+      {t("applyToAll")}
     </Button>
   );
 
   return (
-    <SidebarPanelShell title="Font" footer={footer}>
+    <SidebarPanelShell title={t("title")} footer={footer}>
       <PropertySelect
-        label="Font family"
+        label={t("fontFamily")}
         value={fontFamily}
         options={FONT_FAMILY_OPTIONS.map((item) => ({
           label: item.label,