SDK: artifacts work outside a node, run --follow prints status and queue waits, fluksio cancel

save_artifact/load_artifact outside a node use the worker's own store code in
$FLUKSIO_ARTIFACT_DIR or <tmp>/fluksio-artifacts, so a node can be called by
hand. --follow prints status changes and each node's resource wait; the
placer's waiting snapshot now carries the run. fluksio cancel <run>...

frontend/src/client/schemas.gen.ts

@@ -5002,6 +5002,11 @@ export const WaitingNodeSchema = {
             type: 'string',
             title: 'Node'
         },
+        run: {
+            type: 'string',
+            title: 'Run',
+            default: ''
+        },
         reason: {
             type: 'string',
             title: 'Reason'

frontend/src/client/types.gen.ts

@@ -1580,6 +1580,7 @@ export type ValidationResult = {
 
 export type WaitingNode = {
     node: string;
+    run?: string;
     reason: string;
     seconds: number;
 };