Let a partner adopt the owner's custom networks from the conf phase 1 already cached, instead of asking for a value it cannot know

Plugin/unraid/include/config.php

@@ -883,6 +883,30 @@ function vv_parse_conf_scalar(string $raw, string $key): string {
     return vv_conf_unquote(ltrim($m[1]));
 }
 
+// Read a bash array of plain strings out of a conf, skipping commented entries.
+//
+// Distinct from vv_parse_conf_array() in scheduler.php, which looks the same but keeps only
+// entries ending in .sh — it exists to read job lists. Handing it a list of docker networks
+// returns an empty array, silently, because none of them are scripts. This one makes no
+// assumption about what the entries mean.
+//
+// The closing paren must be at the start of its own line, matching the shape conf_upgrade
+// writes and the same anchor the scheduler parser uses — a value containing ')' would
+// otherwise end the array early.
+function vv_parse_conf_list(string $raw, string $key): array {
+    if (!preg_match('/^\s*' . preg_quote($key, '/') . '\s*=\s*\((.*?)^\s*\)/ms', $raw, $m)) {
+        return [];
+    }
+    $out = [];
+    foreach (explode("\n", $m[1]) as $line) {
+        if (preg_match('/^\s*#/', $line)) continue;              // commented-out entry
+        if (!preg_match('/"([^"]*)"|\'([^\']*)\'/', $line, $e)) continue;
+        $val = trim($e[1] !== '' ? $e[1] : ($e[2] ?? ''));
+        if ($val !== '') $out[] = $val;
+    }
+    return $out;
+}
+
 // Unquote one bash word the way bash does, because the regexes this replaced did not and the
 // conf is read by both. Three separate regexes each handled one quoting style in isolation and
 // none of them handled an escape or two quoted runs in a row, so a value carrying a quote or a