Add dark-mode business logo, payment order steps, and Arvan DNS diagnostics.

Store logo_dark_media_id on businesses, expose logoDarkUrl on tenant/website APIs, prepend awaiting-payment steps to order workflows, and surface clearer Arvan API network errors.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/arvan-dns/arvan-dns.service.ts

@@ -226,9 +226,33 @@ export class ArvanDnsService {
           'Content-Type': 'application/json',
         },
         body: body === undefined ? undefined : JSON.stringify(body),
+        signal: AbortSignal.timeout(20_000),
       });
-    } catch {
-      throw new ServiceUnavailableException('Could not reach ArvanCloud DNS API');
+    } catch (err) {
+      const cause =
+        err && typeof err === 'object' && 'cause' in err
+          ? (err as { cause?: unknown }).cause
+          : undefined;
+      const detail =
+        (cause &&
+          typeof cause === 'object' &&
+          'code' in cause &&
+          typeof (cause as { code: unknown }).code === 'string' &&
+          (cause as { code: string }).code) ||
+        (cause &&
+          typeof cause === 'object' &&
+          'message' in cause &&
+          typeof (cause as { message: unknown }).message === 'string' &&
+          (cause as { message: string }).message) ||
+        (err instanceof Error ? err.message : null);
+      this.logger.warn(
+        `Arvan DNS request failed ${method} ${path}${detail ? `: ${detail}` : ''}`,
+      );
+      throw new ServiceUnavailableException(
+        detail
+          ? `Could not reach ArvanCloud DNS API (${detail})`
+          : 'Could not reach ArvanCloud DNS API',
+      );
     }
 
     const text = await response.text().catch(() => '');