- Fixed the subdirectory loading issue.

Changed:
[app/View.php](/Users/tyemeclifford/Documents/GH/blog/app/View.php): 
generated URLs now honor a base path like /blog.
[app/Config.php](/Users/tyemeclifford/Documents/GH/blog/app/Config.php): 
added base_path support and derives it from base_url or SCRIPT_NAME.
[app/App.php](/Users/tyemeclifford/Documents/GH/blog/app/App.php): route 
parsing strips the base path, and PHP can safely serve theme/upload 
assets for virtual subdirectory previews.
[.htaccess](/Users/tyemeclifford/Documents/GH/blog/.htaccess): removed 
hardcoded RewriteBase /.
[themes/neon/layout.php](/Users/tyemeclifford/Documents/GH/blog/themes/neon/layout.php): 
root-relative social links like /feed.xml now become /blog/feed.xml.
[README.md](/Users/tyemeclifford/Documents/GH/blog/README.md): 
documented subdirectory setup.

README.md

@@ -53,3 +53,14 @@ php cli/blog.php stats:summary
 ## Apache
 
 The included `.htaccess` enables pretty URLs and blocks direct access to app code, configuration, SQLite, CSV, JSON databases, and Markdown content files.
+
+For a subdirectory install such as `https://example.com/blog`, either place the app in that folder and let the CMS auto-detect the path, or set:
+
+```json
+{
+  "base_url": "https://example.com/blog",
+  "base_path": "/blog"
+}
+```
+
+`base_path` controls generated links, assets, forms, RSS, and sitemap paths.