update Acknowledgments

Author: OlaProeis

README.md

@@ -651,14 +651,12 @@ This project is licensed under the MIT License - see the [LICENSE](LICENSE) file
 
 ## Acknowledgments
 
-<details>
-<summary><strong>Libraries & Tools</strong></summary>
-
 ### Libraries
 - [egui](https://github.com/emilk/egui) - Immediate mode GUI library for Rust
 - [comrak](https://github.com/kivikakk/comrak) - CommonMark + GFM compatible Markdown parser
 - [syntect](https://github.com/trishume/syntect) - Syntax highlighting library
 - [git2](https://github.com/rust-lang/git2-rs) - libgit2 bindings for Rust
+- [hayro](https://github.com/LaurenzV/hayro) - Pure Rust PDF rasterization (PDF viewer tabs)
 - [Inter](https://rsms.me/inter/) and [JetBrains Mono](https://www.jetbrains.com/lp/mono/) fonts
 
 ### Development Tools
@@ -673,8 +671,6 @@ This project is licensed under the MIT License - see the [LICENSE](LICENSE) file
 - [@abcd-ca](https://github.com/abcd-ca) — Delete Line, Move Line, macOS file associations ([PR #29](https://github.com/OlaProeis/Ferrite/pull/29), [#30](https://github.com/OlaProeis/Ferrite/pull/30))
 - [@SteelCrab](https://github.com/SteelCrab) — CJK character rendering ([PR #8](https://github.com/OlaProeis/Ferrite/pull/8))
 
-</details>
-
 ## Sponsors
 
 <table>

README.zh-CN.md

@@ -596,14 +596,12 @@ Rust 1.70+，egui/eframe 图形界面，comrak Markdown 解析，ropey 绳索文
 
 ## 致谢
 
-<details>
-<summary><strong>库与工具</strong></summary>
-
 ### 库
 - [egui](https://github.com/emilk/egui) — Rust 即时模式 GUI
 - [comrak](https://github.com/kivikakk/comrak) — CommonMark + GFM Markdown 解析
 - [syntect](https://github.com/trishume/syntect) — 语法高亮
 - [git2](https://github.com/rust-lang/git2-rs) — libgit2 Rust 绑定
+- [hayro](https://github.com/LaurenzV/hayro) — 纯 Rust PDF 光栅化（PDF 查看标签页）
 - [Inter](https://rsms.me/inter/) 与 [JetBrains Mono](https://www.jetbrains.com/lp/mono/) 字体
 
 ### 开发工具
@@ -618,8 +616,6 @@ Rust 1.70+，egui/eframe 图形界面，comrak Markdown 解析，ropey 绳索文
 - [@abcd-ca](https://github.com/abcd-ca) — 删除行、移动行、macOS 文件关联（[PR #29](https://github.com/OlaProeis/Ferrite/pull/29)、[#30](https://github.com/OlaProeis/Ferrite/pull/30)）
 - [@SteelCrab](https://github.com/SteelCrab) — CJK 字符渲染（[PR #8](https://github.com/OlaProeis/Ferrite/pull/8)）
 
-</details>
-
 ## 赞助方
 
 <table>

ROADMAP.md

@@ -2,8 +2,8 @@
 
 ## Next Up (Immediate Focus)
 
-### v0.2.9 - Platform Stack Upgrade, Export & Code Execution
-**Primary focus:** **eframe / egui 0.31+** (Task 38) — large dependency migration with full cross-platform QA. Fixes Wayland keyboard input ([#106](https://github.com/OlaProeis/Ferrite/issues/106)), macOS Sonoma keyboard ([#111](https://github.com/OlaProeis/Ferrite/issues/111)), and Windows 11 borderless/DPI ([#112](https://github.com/OlaProeis/Ferrite/issues/112)). Also: PDF/HTML export, executable code blocks (deferred from v0.2.8), and LSP integration (all phases, deferred from v0.2.8). See [detailed plan](#v029---platform-stack-upgrade-export--code-execution-1) below.
+### v0.2.9 - Platform Stack Upgrade, Export, Code Execution & Media Embeds
+**Primary focus:** **eframe / egui 0.31+** (Task 38) — large dependency migration with full cross-platform QA. Fixes Wayland keyboard input ([#106](https://github.com/OlaProeis/Ferrite/issues/106)), macOS Sonoma keyboard ([#111](https://github.com/OlaProeis/Ferrite/issues/111)), and Windows 11 borderless/DPI ([#112](https://github.com/OlaProeis/Ferrite/issues/112)). Also: PDF/HTML export, executable code blocks (deferred from v0.2.8), LSP integration (all phases, deferred from v0.2.8), and embedded YouTube/video playback ([#119](https://github.com/OlaProeis/Ferrite/issues/119)). See [detailed plan](#v029---platform-stack-upgrade-export--code-execution-1) below.
 
 ---
 
@@ -37,12 +37,12 @@ With the v0.2.6 custom editor, most previous egui TextEdit limitations are resol
 
 ## Planned Features
 
-### v0.2.9 - Platform Stack Upgrade, Export & Code Execution
+### v0.2.9 - Platform Stack Upgrade, Export, Code Execution & Media Embeds
 **Primary focus:** **eframe / egui 0.31+** (Task 38) — large dependency migration with full cross-platform QA. Intended to address **Wayland keyboard input** ([#106](https://github.com/OlaProeis/Ferrite/issues/106)), **macOS Sonoma keyboard** ([#111](https://github.com/OlaProeis/Ferrite/issues/111)), and **Windows 11 borderless / DPI** ([#112](https://github.com/OlaProeis/Ferrite/issues/112)) where fixes depend on newer winit/egui. Workarounds (e.g. `WAYLAND_DISPLAY=` on Ubuntu Wayland) remain documented until this ships.
 
 **Secondary focus:** First-class export from markdown to shareable files (PDF, self-contained HTML). Complements **PDF viewer tabs** (v0.2.8)—**writing → publish**, not only viewing external PDFs.
 
-**Tertiary focus:** Executable code blocks (deferred from v0.2.8) and full LSP integration (Phases 1–4, deferred from v0.2.8 due to memory/usability issues).
+**Tertiary focus:** Executable code blocks (deferred from v0.2.8), full LSP integration (Phases 1–4, deferred from v0.2.8 due to memory/usability issues), and embedded YouTube/video playback via native web views ([#119](https://github.com/OlaProeis/Ferrite/issues/119)).
 
 #### Platform & Dependency Upgrade (Task 38)
 - [ ] **Bump eframe / egui** to 0.31+ (confirm compatible versions); `cargo update`; fix breaking API changes across `main.rs`, editor input, themes, terminal, markdown UI, etc.
@@ -65,6 +65,15 @@ With the v0.2.6 custom editor, most previous egui TextEdit limitations are resol
 - [ ] **Security warning** - First-run dialog explaining execution risks.
   *Security note: Code execution is opt-in and disabled by default.*
 
+#### Embedded Media — YouTube / Video Embeds ([#119](https://github.com/OlaProeis/Ferrite/issues/119))
+- [ ] **Custom syntax detection** — Detect YouTube/video URLs in markdown (e.g. `{{video URL}}` or bare YouTube URLs in their own paragraph) in `markdown/parser.rs`.
+- [ ] **Embedded web view via `wry`** — Use Tauri's [`wry`](https://lib.rs/crates/wry) crate to spawn a platform-native WebView (WebView2 on Windows, WebKitGTK on Linux, WebKit on macOS) as a child window positioned over the egui rendered view.
+- [ ] **Viewport tracking** — Sync the child WebView position/size with the egui rect each frame; hide when scrolled off-screen or tab is inactive.
+- [ ] **Fallback: thumbnail + open-in-browser** — For platforms where `wry` child windows aren't viable, fetch YouTube thumbnail (`img.youtube.com`) and render as clickable image with play overlay; click opens system browser.
+- [ ] **Extensible embed system** — Design the embed trait/interface to support future providers (Vimeo, etc.).
+
+*Note: This is an exploratory feature. The `wry` child-window-over-egui approach has known challenges (z-ordering, scroll sync, platform quirks). The thumbnail fallback ensures the feature ships something usable regardless. Depends on egui 0.31+ upgrade (Task 38) for stable `RawWindowHandle` access.*
+
 #### LSP Integration (Phases 1–4)
 *Deferred from v0.2.8: Phase 1–2 implementation had high memory usage (rust-analyzer ~3.8 GB) and no diagnostics panel to surface warnings. Code remains in-tree behind the `lsp` feature flag; needs fixes before shipping.*