Match the tailnet device name to the conf hostname by unambiguous prefix

master.conf says unRAID-Jayred36 and the tailnet device is unraid-jayred365, so the exact-key lookup found nothing and every remote card rendered with no IP, no online state and no containers.

Plugin/unraid/include/partnership.php

@@ -408,8 +408,28 @@ function vv_pt_nodes(): array {
         $isOwner = (strtolower($ownerSlot) === $slot);
 
         // Tailscale
+        //
+        // Exact key first, then a single unambiguous prefix match in either direction. The
+        // tailnet name and the OS hostname are not the same string and nothing keeps them in
+        // step: this mesh has master.conf saying "unRAID-Jayred36" while the tailnet device is
+        // "unraid-jayred365". An exact-key lookup found nothing, so every remote card rendered
+        // with no IP, no online state and no container count — a partner that was answering SSH
+        // the whole time displayed as though it were not there.
+        //
+        // Same rule as vv_resolve_tailscale_ip(), and the same refusal: one candidate or none.
+        // server1 must never resolve to server10 because it happens to share a prefix.
         $tsLabel = strtolower($hostname);
-        $ts = $tsPeers[$tsLabel] ?? ['online' => null, 'active' => false, 'ip' => null];
+        $ts = $tsPeers[$tsLabel] ?? null;
+        if ($ts === null) {
+            $cand = [];
+            foreach ($tsPeers as $peerName => $peer) {
+                if (str_starts_with($peerName, $tsLabel) || str_starts_with($tsLabel, $peerName)) {
+                    $cand[] = $peer;
+                }
+            }
+            if (count($cand) === 1) $ts = $cand[0];
+        }
+        if ($ts === null) $ts = ['online' => null, 'active' => false, 'ip' => null];
 
         // Fallback state
         $fbState = 'UNKNOWN';