ui: show resolution and codec counts in streams header

Adds height/codec fields to both Emby/Jellyfin and Plex session data,
then surfaces them as chip groups (· 2 4K  3 1080p · 4 H.264  2 HEVC)
in the streams card header alongside the existing device type bar.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Plugin/unraid/include/media.php

@@ -109,6 +109,12 @@ function vv_fetch_jf_sessions(array $srv): array {
             $method = $pm === 'DirectStream' ? 'Direct Stream' : 'Direct Play';
         }
 
+        // Source video stream — resolution and codec of the file being played
+        $videoStream = null;
+        foreach ($item['MediaStreams'] ?? [] as $ms) {
+            if (($ms['Type'] ?? '') === 'Video') { $videoStream = $ms; break; }
+        }
+
         $result[] = [
             'server'      => $srv['name'],
             'server_type' => $srv['type'],
@@ -122,6 +128,8 @@ function vv_fetch_jf_sessions(array $srv): array {
             'pos_sec'     => (int)($pos / 10000000),
             'dur_sec'     => (int)($dur / 10000000),
             'is_tc'       => $tc !== null,
+            'height'      => (int)($videoStream['Height'] ?? 0),
+            'codec'       => strtolower($videoStream['Codec'] ?? ''),
         ];
     }
     return $result;
@@ -160,6 +168,12 @@ function vv_fetch_plex_sessions(array $srv): array {
         }
 
         $player = $m['Player'] ?? [];
+        $media0 = $m['Media'][0] ?? [];
+        $plexH  = (int)($media0['height'] ?? 0);
+        if (!$plexH && !empty($media0['videoResolution'])) {
+            $vr    = strtolower($media0['videoResolution']);
+            $plexH = $vr === '4k' ? 2160 : (int)$vr;
+        }
         $result[] = [
             'server'      => $srv['name'],
             'server_type' => $srv['type'],
@@ -173,6 +187,8 @@ function vv_fetch_plex_sessions(array $srv): array {
             'pos_sec'     => (int)($offset / 1000),
             'dur_sec'     => (int)($dur / 1000),
             'is_tc'       => $isTc,
+            'height'      => $plexH,
+            'codec'       => strtolower($media0['videoCodec'] ?? ''),
         ];
     }
     return $result;