Version 1.7.1 — auto default_page detection

- config.json now has default_page: auto for fresh installs
- CodePressCMS::detectDefaultPage() scans content/ for first available file
- getHomepageTitle() also respects auto mode
- Admin config form preserves auto as selectable option
- Save handler falls back to auto instead of index

cms/core/class/CodePressCMS.php

@@ -354,6 +354,9 @@ class CodePressCMS {
         }
         
         $page = $_GET['page'] ?? $this->config['default_page'];
+        if ($page === 'auto') {
+            $page = $this->detectDefaultPage();
+        }
         // Limit length
         $page = substr($page, 0, 255);
         // Only remove file extension at the end, not all dots
@@ -1323,6 +1326,37 @@ class CodePressCMS {
         return 'markdown';
     }
     
+    /**
+     * Auto-detect the first available content page
+     *
+     * Scans the content directory for the first .md/.php/.html file
+     * (preferring non-language-prefixed files) and returns its page key.
+     *
+     * @return string Detected page key, or 'index' as fallback
+     */
+    private function detectDefaultPage(): string
+    {
+        $contentDir = $this->config['content_dir'];
+        if (!is_dir($contentDir)) return 'index';
+
+        $files = scandir($contentDir);
+        $candidates = [];
+        foreach ($files as $f) {
+            if (preg_match('/^((?:nl|en)\.)?(.+?)\.(md|php|html)$/', $f, $m)) {
+                $candidates[] = ['prefix' => $m[1], 'name' => $m[2], 'file' => $f];
+            }
+        }
+
+        if (empty($candidates)) return 'index';
+
+        // Prefer non-language-prefixed files (e.g. index.md over nl.index.md)
+        foreach ($candidates as $c) {
+            if (empty($c['prefix'])) return $c['name'];
+        }
+
+        return $candidates[0]['name'];
+    }
+
     /**
      * Get homepage title
      * 
@@ -1330,7 +1364,11 @@ class CodePressCMS {
      */
     private function getHomepageTitle() {
         // Use formatted filename for homepage title in navigation
-        return $this->formatDisplayName($this->config['default_page']);
+        $page = $this->config['default_page'];
+        if ($page === 'auto') {
+            $page = $this->detectDefaultPage();
+        }
+        return $this->formatDisplayName($page);
     }
     
     /**