refactor(recovery): remove legacy runtime column aliases

docs/release-control/v6/internal/subsystems/frontend-primitives.md

@@ -703,6 +703,11 @@ shape. `frontend-modern/src/utils/recoveryPlatformModel.ts`,
 transport display aliases like `subjectLabel` and `subjectType` into canonical
 runtime `itemLabel` and `itemType` fields before recovery presenters consume
 the model.
+The same shared recovery-column boundary must keep legacy `subject` and
+`source` column ids at migration-only scope once
+`frontend-modern/src/hooks/useColumnVisibility.ts` owns alias rewrites.
+Recovery table runtime helpers and render switches should operate on canonical
+`item` and `platform` ids rather than carrying the deleted ids as live cases.
 That same shared recovery state owner now also keeps `platform` as the
 canonical route and transport filter name for operator-facing recovery links,
 while any accepted legacy `provider` aliases remain parser compatibility only.

docs/release-control/v6/internal/subsystems/storage-recovery.md

@@ -180,7 +180,9 @@ canonical as well. Recovery inventory and event-history columns should use
 `item` and `platform` identities rather than preserving `subject` and `source`
 as the primary runtime model, and any saved legacy column IDs must migrate at
 the shared column-visibility boundary instead of forcing recovery renderers to
-carry deleted column identities indefinitely.
+carry deleted column identities indefinitely. Once that migration exists,
+recovery tables and shared table presenters should not continue accepting
+legacy `subject` and `source` ids in the live runtime path.
 That same runtime-helper contract should prefer `item` terminology in shared
 recovery presenters too. Helper exports that resolve labels or item-type badges
 should expose canonical item-facing names, while any retained `subject` aliases

frontend-modern/src/components/Recovery/RecoveryHistoryTable.tsx

@@ -225,7 +225,6 @@ export const RecoveryHistoryTable: Component<RecoveryHistoryTableProps> = (props
                                     </TableCell>
                                   );
                                 case 'item':
-                                case 'subject':
                                   return (
                                     <TableCell
                                       class="max-w-[420px] whitespace-nowrap px-3 py-0.5 text-base-content"
@@ -294,8 +293,7 @@ export const RecoveryHistoryTable: Component<RecoveryHistoryTableProps> = (props
                                       {namespace || '—'}
                                     </TableCell>
                                   );
-                                case 'platform':
-                                case 'source': {
+                                case 'platform': {
                                   const badge = getSourcePlatformBadge(platform);
                                   return (
                                     <TableCell class="whitespace-nowrap px-3 py-0.5 text-center">

frontend-modern/src/components/Recovery/__tests__/Recovery.test.tsx

@@ -402,6 +402,8 @@ describe('Recovery', () => {
     const historyTable = tables[tables.length - 1];
     expect(within(historyTable).getByText('Item')).toBeInTheDocument();
     expect(within(historyTable).getByText('Platform')).toBeInTheDocument();
+    expect(within(historyTable).queryByText('Subject')).not.toBeInTheDocument();
+    expect(within(historyTable).queryByText('Source')).not.toBeInTheDocument();
     expect(within(historyTable).queryByText('Cluster / Site')).not.toBeInTheDocument();
   });
 

frontend-modern/src/utils/__tests__/recoveryTablePresentation.test.ts

@@ -43,20 +43,18 @@ describe('recoveryTablePresentation', () => {
     expect(RECOVERY_ARTIFACT_COLUMN_LABELS.type).toBe('Item Type');
     expect(RECOVERY_ARTIFACT_COLUMN_LABELS.item).toBe('Item');
     expect(RECOVERY_ARTIFACT_COLUMN_LABELS.platform).toBe('Platform');
-    expect(RECOVERY_ARTIFACT_COLUMN_LABELS.subject).toBe('Item');
-    expect(RECOVERY_ARTIFACT_COLUMN_LABELS.source).toBe('Platform');
     expect(RECOVERY_ARTIFACT_COLUMN_LABELS.cluster).toBe('Cluster / Site');
     expect(RECOVERY_ARTIFACT_COLUMN_LABELS.nodeAgent).toBe('Host / Agent');
     expect(RECOVERY_ARTIFACT_COLUMN_LABELS.namespace).toBe('Namespace / Group');
     expect(getRecoveryArtifactColumnLabel('type', 'Type')).toBe('Item Type');
     expect(getRecoveryArtifactColumnLabel('item', 'Item')).toBe('Item');
     expect(getRecoveryArtifactColumnLabel('platform', 'Platform')).toBe('Platform');
-    expect(getRecoveryArtifactColumnLabel('subject', 'Subject')).toBe('Item');
-    expect(getRecoveryArtifactColumnLabel('source', 'Source')).toBe('Platform');
     expect(getRecoveryArtifactColumnLabel('cluster', 'Cluster')).toBe('Cluster / Site');
     expect(getRecoveryArtifactColumnLabel('nodeAgent', 'Node')).toBe('Host / Agent');
     expect(getRecoveryArtifactColumnLabel('namespace', 'Namespace')).toBe('Namespace / Group');
     expect(getRecoveryArtifactColumnLabel('outcome', 'Outcome')).toBe('Outcome');
+    expect(getRecoveryArtifactColumnLabel('subject', 'Subject')).toBe('Subject');
+    expect(getRecoveryArtifactColumnLabel('source', 'Source')).toBe('Source');
   });
 
   it('derives time text classes from event recency', () => {
@@ -111,7 +109,7 @@ describe('recoveryTablePresentation', () => {
     expect(getRecoveryArtifactColumnHeaderClass('time')).toContain('text-right');
     expect(getRecoveryArtifactColumnHeaderClass('type')).toContain('w-[96px]');
     expect(getRecoveryArtifactColumnHeaderClass('item')).toContain('w-[248px]');
-    expect(getRecoveryArtifactColumnHeaderClass('subject')).toContain('w-[248px]');
+    expect(getRecoveryArtifactColumnHeaderClass('subject')).toBe('');
     expect(getRecoveryArtifactTableMinWidth(['time', 'item', 'outcome'])).toBe('980px');
     expect(
       getRecoveryArtifactTableMinWidth([

frontend-modern/src/utils/recoveryTablePresentation.ts

@@ -28,8 +28,6 @@ export const RECOVERY_ARTIFACT_COLUMN_LABELS: Record<string, string> = {
   type: 'Item Type',
   item: 'Item',
   platform: 'Platform',
-  subject: 'Item',
-  source: 'Platform',
 };
 
 const RECOVERY_ARTIFACT_COLUMN_SPECS: Record<string, { headerClass: string; minWidthPx: number }> = {
@@ -37,12 +35,10 @@ const RECOVERY_ARTIFACT_COLUMN_SPECS: Record<string, { headerClass: string; minW
   type: { headerClass: 'w-[96px] text-center', minWidthPx: 96 },
   item: { headerClass: 'w-[248px]', minWidthPx: 248 },
   platform: { headerClass: 'w-[78px] text-center', minWidthPx: 78 },
-  subject: { headerClass: 'w-[248px]', minWidthPx: 248 },
   entityId: { headerClass: 'w-[84px]', minWidthPx: 84 },
   cluster: { headerClass: 'w-[120px]', minWidthPx: 120 },
   nodeAgent: { headerClass: 'w-[120px]', minWidthPx: 120 },
   namespace: { headerClass: 'w-[120px]', minWidthPx: 120 },
-  source: { headerClass: 'w-[78px] text-center', minWidthPx: 78 },
   verified: { headerClass: 'w-[56px] text-center', minWidthPx: 56 },
   size: { headerClass: 'w-[92px] text-right', minWidthPx: 92 },
   method: { headerClass: 'w-[84px] text-center', minWidthPx: 84 },