Fix documentation build: exclude SEO_ENHANCEMENTS.md and clean template formatting

- Add SEO_ENHANCEMENTS.md to exclude_patterns to prevent Sphinx warnings
- Clean up layout.html template formatting for better compatibility
- Split template tags across multiple lines for readability

docs/_templates/layout.html

@@ -1,4 +1,6 @@
-{% extends "!layout.html" %} {% block extrahead %} {{ super() }}
+{% extends "!layout.html" %}
+{% block extrahead %}
+{{ super() }}
 <!-- Additional SEO and social meta tags -->
 <meta name="application-name" content="tzst" />
 <meta name="generator" content="Sphinx {{ sphinx_version }}" />

docs/conf.py

@@ -29,7 +29,7 @@ extensions = [
 ]
 
 templates_path = ["_templates"]
-exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
+exclude_patterns = ["_build", "Thumbs.db", ".DS_Store", "SEO_ENHANCEMENTS.md"]
 
 # Base URL for sitemap generation
 html_baseurl = "https://tzst.xi-xu.me/"