Update documentation workflow and 404 page

Added a new 404.md file for handling 'Page Not Found' errors in the documentation. Updated the publish_docs.yml workflow to include a 'cname' parameter. Removed the CNAME file from the docs directory as it is now managed in the workflow.

.github/workflows/publish_docs.yml

@@ -64,6 +64,7 @@ jobs:
           user_name: "github-actions[bot]"
           user_email: "github-actions[bot]@users.noreply.github.com"
           commit_message: "Deploy documentation from ${{ github.sha }}"
+          cname: tzst.xi-xu.me
 
   docs-quality-check:
     runs-on: ubuntu-latest

docs/404.md

@@ -0,0 +1,68 @@
+---
+myst:
+  html_meta:
+    description: "Page not found - tzst documentation. Return to the main documentation or search for what you're looking for."
+    keywords: "404, page not found, tzst documentation, error"
+    og:title: "Page Not Found - tzst Documentation"
+    og:description: "The requested page could not be found. Visit the tzst documentation homepage or use the search feature."
+    twitter:title: "Page Not Found - tzst Documentation"
+    twitter:description: "The requested page could not be found. Visit the tzst documentation homepage or use the search feature."
+---
+
+# 404 - Page Not Found
+
+## 🔍 Oops! The page you're looking for doesn't exist
+
+The URL you requested could not be found in the tzst documentation. This might happen if:
+
+- The page has been moved or renamed
+- You followed a broken link
+- There's a typo in the URL
+- The page has been removed
+
+## 🏠 Where would you like to go?
+
+### Popular Pages
+
+- **{doc}`index`** - Documentation homepage
+- **{doc}`quickstart`** - Get started with tzst
+- **{doc}`examples`** - Practical examples and use cases
+- **{doc}`api/index`** - Complete API reference
+
+### Quick Navigation
+
+- **Installation Guide** - {ref}`quickstart:installation`
+- **Basic Usage** - {ref}`quickstart:basic-usage`
+- **Security Features** - {ref}`examples:security-and-filtering`
+- **Error Handling** - {ref}`examples:error-handling`
+
+## 🔎 Search Documentation
+
+Use the search box in the top navigation to find what you're looking for, or browse through these sections:
+
+### Core Features
+
+- **{doc}`api/core`** - Core TzstArchive class and functions
+- **{doc}`api/cli`** - Command-line interface
+- **{doc}`api/exceptions`** - Exception handling
+
+### Examples & Tutorials
+
+- **Archive Creation** - {ref}`examples:basic-archive-operations`
+- **Security Best Practices** - {ref}`examples:security-and-filtering`
+- **Integration Examples** - {ref}`examples:integration-examples`
+- **Performance Optimization** - {ref}`quickstart:performance-optimization`
+
+## 📚 Additional Resources
+
+- [GitHub Repository](https://github.com/xixu-me/tzst) - Source code and issue tracker
+- [PyPI Package](https://pypi.org/project/tzst/) - Download and installation
+- [Release Notes](https://github.com/xixu-me/tzst/releases) - Latest updates and changes
+
+## 🐛 Report an Issue
+
+If you believe this is a broken link within our documentation, please [report it on GitHub](https://github.com/xixu-me/tzst/issues).
+
+---
+
+**Need help?** Check our {doc}`quickstart` guide or browse the {doc}`examples` for common use cases.

docs/CNAME

@@ -1 +0,0 @@
-tzst.xi-xu.me