diag: error_log sync-event POSTs to trace missing toasts

Temporary diagnostic scaffolding — B-side logs every POST to the relay
(status + body snippet), A-side already console.debugs the GET result
via sync_debug. Lets us narrow down where the sender-side toast gets
lost.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

config.php

@@ -1,7 +1,7 @@
 <?php
 
 define('APP_NAME', 'hyprcrd');
-define('APP_VERSION', '1.8.1');
+define('APP_VERSION', '1.8.2');
 
 // Database path — writable directory, outside webroot
 // DB_PATH / UPLOAD_DIR can be pre-defined by the Electron router for app isolation

electron/package.json

@@ -1,6 +1,6 @@
 {
   "name": "hyprcrd",
-  "version": "1.8.1",
+  "version": "1.8.2",
   "description": "hyprcrd — self-hosted card manager",
   "main": "main.js",
   "scripts": {

public/index.php

@@ -910,8 +910,12 @@ if (str_starts_with($route, '/api/')) {
                     ],
                     CURLOPT_TIMEOUT => 5,
                 ]);
-                curl_exec($bch);
+                $bRes = curl_exec($bch);
+                $bStat = curl_getinfo($bch, CURLINFO_HTTP_CODE);
                 curl_close($bch);
+                @error_log('[hyprcrd] sync-event POST → ' . $senderName
+                    . ' status=' . $bStat
+                    . ' body=' . substr((string)$bRes, 0, 120));
             }
 
             // Download attachments

public/plugins/collab-buckets/backend.php

@@ -707,10 +707,14 @@ function collabSyncCards(PDO $db): array {
             // authored by someone else.
             if ($foreignAuthor && !empty($c['author_username'])) {
                 $cardTitle = trim((string)($fields['title'] ?? '')) ?: '(untitled)';
-                collabRelayCall('/api/sync-events', 'POST', [
+                $evRes = collabRelayCall('/api/sync-events', 'POST', [
                     'recipient' => $c['author_username'],
                     'body'      => $selfUser . ' synced: ' . $cardTitle,
                 ]);
+                @error_log('[hyprcrd] sync-event POST → ' . $c['author_username']
+                    . ' ok=' . ($evRes['ok'] ?? 'n/a')
+                    . ' status=' . ($evRes['status'] ?? '-')
+                    . ' err=' . substr((string)($evRes['error'] ?? ''), 0, 120));
             }
 
         }