feat(ext): list/detail load + render org items in org context (normalized, read-only)

extension/src/shared/popup-state.ts

@@ -57,6 +57,11 @@ export interface PopupState {
   orgOffline?: boolean;
   orgConfigs?: OrgConfigSummary[];
   orgCollections?: Collection[];
+  // Tracks which context's items were last loaded into `entries`. Used by
+  // renderItemList to fire a context-aware load exactly ONCE per context
+  // switch (loop-safe guard: setState({loadedContext}) re-renders, but the
+  // guard then matches so no second load fires).
+  loadedContext?: string;
   // Vault-tab-only fields. The popup surface leaves these at their defaults
   // (unlocked=false implicit via separate lock-screen view, drawer/panel false).
   // Kept on the shared shape so VaultState satisfies StateHost.getState()