Move to @pezkuwi/dev 0.86.4 (eslint 10 toolchain)

- dev ^0.86.4 at the root and in packages/apps; directives renamed by
  pezkuwi-dev-migrate-eslint10.
- eslint --fix with the 0.86.4 config; one fix broke syntax
  (typescript-eslint prefer-optional-chain turned
  `(isStarted && onStart) && onStart()` into `(isStarted && onStart?.();`
  in TxButton) and is corrected by hand.
- The remaining findings fixed rather than disabled: optional chains
  (each suggestion reviewed), `cause` on rethrown errors, `if` instead of
  `a && promise` in effects, parallel instead of sequential awaits in
  Promise.all, Error rejections, no `delete` on arrays (the storage query
  cache is a Map; an upload's file list no longer keeps a hole), no
  `[object Object]` stringification (TFunction's second argument is text
  or options), dead code removed (referenda's never-shown expand button,
  react-query's unused CoreDescriptor).

packages/apps/src/Endpoints/Group.tsx

@@ -31,7 +31,7 @@ function GroupDisplay ({ affinities, apiUrl, children, className = '', favoriteC
     [index, isSelected, setGroup]
   );
 
-  const isFavoriteHeader = useMemo(() => header?.toString().includes('Favorite'), [header]);
+  const isFavoriteHeader = useMemo(() => typeof header === 'string' && header.includes('Favorite'), [header]);
 
   const filtered = useMemo(
     () => networks.filter(({ isUnreachable }) => !isUnreachable),

packages/apps/src/Endpoints/index.tsx

@@ -63,9 +63,9 @@ function combineEndpoints (endpoints: LinkOption[]): Group[] {
       const prov = { isLightClient: e.isLightClient, name: e.textBy, url: e.value };
 
       const isFavorite = isFavoriteChain(favoriteChains,
-        { chainName: e.text?.toString() ?? '',
+        { chainName: typeof e.text === 'string' ? e.text : '',
           paraId: e.paraId,
-          relay: e.textRelay?.toString() });
+          relay: typeof e.textRelay === 'string' ? e.textRelay : undefined });
 
       if (isFavorite && favoriteGroupIndex !== -1 && !e.isUnreachable) {
         const favGroup = result[favoriteGroupIndex];
@@ -106,7 +106,7 @@ function combineEndpoints (endpoints: LinkOption[]): Group[] {
 
   // Swap first two items in `networks` if first item is relay chain
   combinedEndpoints.forEach((r) => {
-    if (r.networks.length >= 2 && r.networks[0].isRelay && r.header?.toString().includes('teyrchains')) {
+    if (r.networks.length >= 2 && r.networks[0].isRelay && typeof r.header === 'string' && r.header.includes('teyrchains')) {
       [r.networks[0], r.networks[1]] = [r.networks[1], r.networks[0]];
     }
   });

packages/apps/src/Endpoints/types.ts

@@ -9,7 +9,7 @@ export interface IFavoriteChainProps {
   paraId?: number;
 }
 
-export type IFavoriteChainsStorage = Record<string, {relay: string, paraId: number}[]>
+export type IFavoriteChainsStorage = Record<string, { relay: string, paraId: number }[]>;
 
 export interface Network {
   isChild?: boolean;

packages/apps/src/Endpoints/utils.ts

@@ -6,7 +6,7 @@ import type { IFavoriteChainProps, IFavoriteChainsStorage } from './types.js';
 import { createWsEndpoints } from '@pezkuwi/apps-config';
 
 export const FAVORITE_CHAINS_KEY = 'pezkuwi-app-favorite-chains';
-const chainsConfig = createWsEndpoints((k, v) => v?.toString() || k);
+const chainsConfig = createWsEndpoints((k, v) => (typeof v === 'string' && v) || k);
 
 export const toggleFavoriteChain = (
   chainInfo: IFavoriteChainProps