fix(admin): resolve Tiptap editor bugs, dynamic RTL/LTR layout, sticky TOC, and equalize Bidi typography

frontend/README.md

@@ -3,9 +3,19 @@
 
 A modern React + Vite + TypeScript frontend application with a luxurious dark theme (Background: `#27221c`, Accent: `#d5874c`). All text content and assets are fetched dynamically from the backend API (`GET /api/site`).
 
-## Typography
+## Typography & Smart Bidi Text
 The **Pinar** font is installed and served locally. The application no longer relies on any external servers or CDNs for font rendering, and the UI is fully localized for Persian (Farsi) users.
 
+**Smart Bidi Typography:** To maintain perfect visual weight and baseline alignment when mixing English words within Persian text, we utilize a dynamic CSS calculation for Latin characters: `calc(1em - 2px)`. This ensures that English text automatically scales down slightly to match the natural density and baseline of the Persian font, preventing any visual imbalance in mixed-language sentences.
+
+## Recent UI/UX Improvements
+*   **Tiptap Editor Fixes**: 
+    *   Resolved the initialization bug where the editor body remained empty during edit mode.
+    *   Fixed Tiptap block boundaries so formatting a new line (e.g., changing it to H2) no longer alters the formatting of the previous line.
+*   **Dynamic TOC & Layout**: 
+    *   The Table of Contents (TOC) is now strictly `position: sticky` and extracts all H2/H3 tags flawlessly.
+    *   The entire article layout (including Author, Read Time, and TOC) dynamically flips RTL/LTR based on the article's primary language.
+
 ## CMS, SEO & Editor Features
 
 The project includes a robust, custom-built Digital Twin (Admin Panel) with advanced content management capabilities, emphasizing a premium UI/UX:
@@ -15,8 +25,8 @@ The project includes a robust, custom-built Digital Twin (Admin Panel) with adva
 *   **Article Metadata & Reading Time:** A beautifully designed metadata component displaying the author's avatar, name, publication date, and an auto-calculated dynamic reading time (displayed dynamically with Persian numerals, e.g., "۵ دقیقه مطالعه") directly below the H1 title.
 *   **Dynamic Table of Contents (TOC):** Auto-generates a clickable TOC from `h2` and `h3` tags within the article, using a custom Persian-supported `slugify` logic for anchor links.
 *   **Custom Tiptap WYSIWYG Editor:** 
-    *   **Fixed Toolbar & Typography:** Dedicated LTR/RTL toggles (`data-dir="ltr|rtl"`) with specific font scaling (RTL Base: 14px, LTR Base: 12px) mapped to a fixed toolbar that maintains layout stability.
-    *   **Advanced Image & Caption Nodes:** Built via `ReactNodeViewRenderer`, rendering HTML wrapped in `<figure><figcaption>`. Features strictly isolated UI deletion controls (separate 'X' buttons to delete either the image entirely or just the caption text).
+    *   **Fixed Toolbar & Typography:** Dedicated LTR/RTL toggles (`data-dir="ltr|rtl"`) mapped to a fixed toolbar that ensures layout stability.
+    *   **Advanced Image & Caption Nodes:** Built via `ReactNodeViewRenderer`, rendering HTML wrapped in `<figure><figcaption>`. Features strictly isolated UI deletion controls.
     *   **Animated Link Modal:** A premium, auto-opening modal with smooth fade/scale transition effects. Includes seamless checkbox toggles for "Open in new tab" (`target="_blank" rel="noopener noreferrer"`) and SEO link attributes (`nofollow/dofollow`).
 *   **Full Jalali (Shamsi) Calendar Integration:** 
     *   Admin panel utilizes `react-multi-date-picker` for a visual Persian date selection experience.
@@ -50,4 +60,3 @@ npm run build
 * `src/admin/` — Live editing layer (Digital Twin): includes the admin toolbar, entity drawers, and the article editor.
 * `src/seo.ts` — Manages page-level SEO tags (Title, Description, Open Graph, Canonical, JSON-LD).
 * `src/data/site.ts` — Shared TypeScript data models and interfaces.
-