Add status: "draft" to multiple documentation pages and enhance navigation sections

docs-src/pages/en/cookbook/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Cookbook"
 order: 0
+status: "draft"
 ---
 
 A collection of recipes that answer "How do I...?" questions. Each recipe is self-contained — read only what you need.

docs-src/pages/en/index.md

@@ -18,5 +18,8 @@ Under the hood, it uses blocking I/O with a thread pool. It's not built for hand
 ## Documentation
 
 - [A Tour of cpp-httplib](tour/) — A step-by-step tutorial covering the basics. Start here if you're new
+
+## Stay Tuned
+
 - [Cookbook](cookbook/) — A collection of recipes organized by topic. Jump to whatever you need
 - [Building a Desktop LLM App](llm-app/) — A hands-on guide to building a desktop app with llama.cpp, step by step

docs-src/pages/en/llm-app/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Building a Desktop LLM App with cpp-httplib"
 order: 0
+status: "draft"
 ---
 
 Build an LLM-powered translation desktop app step by step, learning both the server and client sides of cpp-httplib along the way. Translation is just an example — swap it out to build your own summarizer, code generator, chatbot, or any other LLM application.