Add secure public directory structure with .htaccess

- Created public/ directory for web-accessible files
- Moved content and assets to public/ subdirectories
- Added .htaccess files for security and routing
- Updated config.php to use public/content path
- Blocked direct access to PHP files and sensitive directories
- Added URL routing to index.php
- Enhanced security headers and PHP settings

.htaccess

@@ -0,0 +1,44 @@
+# Security - Block access to entire application
+<Files ~ "^\.">
+    Order allow,deny
+    Deny from all
+</Files>
+
+<FilesMatch "\.(php|ini|log|conf|config|md)$">
+    Order allow,deny
+    Deny from all
+</FilesMatch>
+
+# Block access to all application files
+<IfModule mod_authz_core.c>
+    Require all denied
+</IfModule>
+
+# Directory protection - Block all access
+<Directory />
+    Order allow,deny
+    Deny from all
+</Directory>
+
+# Only allow access to public directory
+<Directory "public">
+    Order allow,deny
+    Allow from all
+    Require all granted
+</Directory>
+
+# Set default directory to public
+DirectoryIndex public/index.php
+
+# Redirect root to public directory
+<IfModule mod_rewrite.c>
+    RewriteEngine On
+    RewriteBase /
+    
+    # Redirect root to public
+    RewriteRule ^$ public/ [L]
+    
+    # Redirect all other requests to public
+    RewriteCond %{REQUEST_URI} !^/public/
+    RewriteRule ^(.*)$ public/$1 [L]
+</IfModule>