fix(network): lower slp parse failure logging

Author: lxhtt

MCServerLauncher.Common/Network/SlpClient.cs

@@ -185,7 +185,7 @@ public async Task<bool> HandShakeAsync(string host, ushort port, CancellationTok
         }
         catch (Exception e)
         {
-            Log.Error("[SlpClient] Failed to parse server ping payload: {0}", e);
+            Log.Debug(e, "[SlpClient] Failed to parse server ping payload");
             return null;
         }
     }
@@ -218,7 +218,7 @@ public async Task<bool> HandShakeAsync(string host, ushort port, CancellationTok
         }
         catch (Exception e)
         {
-            Log.Error("[SlpClient] Failed to parse server ping payload: {0}", e);
+            Log.Debug(e, "[SlpClient] Failed to parse server ping payload");
             return null;
         }
     }

docs/superpowers/plans/2026-06-19-slp-report-failure-tolerance.md

@@ -70,3 +70,4 @@ Expected: commands exit 0.
 - Added regression coverage for invalid Minecraft SLP status responses closing before latency ping.
 - Updated modern SLP probing to stop after invalid status payloads.
 - Hardened Minecraft instance report enrichment so player-list probe failures do not fail `GetAllReports`.
+- Downgraded invalid SLP payload parse logs from error to debug because report-time Minecraft ping is best-effort.