Add parse errors tab and improve error diagnostics UI

internal/collector/redfish.go

@@ -110,6 +110,12 @@ func (c *RedfishConnector) Collect(ctx context.Context, req Request, emit Progre
 	if recoveredN := c.recoverCriticalRedfishDocsPlanB(ctx, criticalClient, req, baseURL, criticalPaths, rawTree, fetchErrMap, emit); recoveredN > 0 {
 		c.debugSnapshotf("critical plan-b recovered docs=%d", recoveredN)
 	}
+	// Hide transient fetch errors for endpoints that were eventually recovered into rawTree.
+	for p := range fetchErrMap {
+		if _, ok := rawTree[p]; ok {
+			delete(fetchErrMap, p)
+		}
+	}
 	if emit != nil {
 		emit(Progress{Status: "running", Progress: 99, Message: "Redfish: анализ raw snapshot..."})
 	}