feat: detect display_name, target_version, php_minimum in manifest_detect

These fields are now required by MokoGitea's update feed generator
which reads them from the manifest API (#592).

- display_name: from XML <name> with type prefix detection
- target_version: from <targetplatform version=""> or default (5|6)
- php_minimum: from <php_minimum> tag

cli/manifest_detect.php

@@ -161,15 +161,18 @@ class ManifestDetectCli extends CliFramework
         $platform = $this->detectPlatform($root);
 
         $fields = [
-            'platform'     => $platform,
-            'name'         => '',
-            'description'  => '',
-            'version'      => '',
-            'element_name' => '',
-            'package_type' => '',
-            'language'     => '',
-            'entry_point'  => '',
-            'license_spdx' => '',
+            'platform'       => $platform,
+            'name'           => '',
+            'description'    => '',
+            'version'        => '',
+            'element_name'   => '',
+            'package_type'   => '',
+            'language'       => '',
+            'entry_point'    => '',
+            'license_spdx'   => '',
+            'display_name'   => '',
+            'target_version' => '',
+            'php_minimum'    => '',
         ];
 
         switch ($platform) {
@@ -349,6 +352,30 @@ class ManifestDetectCli extends CliFramework
             }
         }
 
+        // Display name for update feeds
+        if (!empty($fields['name'])) {
+            $name = $fields['name'];
+            // If name already has "Type - " prefix, use as-is
+            if (preg_match('/^(Package|Component|Module|Plugin|Template|Library)\s*-\s*/i', $name)) {
+                $fields['display_name'] = $name;
+            } elseif (!empty($extType)) {
+                $fields['display_name'] = ucfirst($extType) . ' - ' . $name;
+            }
+        }
+
+        // Target Joomla version
+        if (preg_match('/<targetplatform\s[^>]*version="([^"]+)"/', $xml, $m)) {
+            $fields['target_version'] = trim($m[1]);
+        } else {
+            // Default for Joomla 5/6
+            $fields['target_version'] = '(5|6)\..*';
+        }
+
+        // PHP minimum
+        if (preg_match('/<php_minimum>([^<]+)<\/php_minimum>/', $xml, $m)) {
+            $fields['php_minimum'] = trim($m[1]);
+        }
+
         // License
         if (preg_match('/<license>([^<]+)<\/license>/', $xml, $m)) {
             $fields['license_spdx'] = $this->normalizeLicense(trim($m[1]));