FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/viem/chains/definitions/abstractTestnet.ts

@@ -0,0 +1,38 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+import { chainConfig } from '../../zksync/chainConfig.js'
+
+export const abstractTestnet = /*#__PURE__*/ defineChain({
+  ...chainConfig,
+  blockTime: 200,
+  id: 11_124,
+  name: 'Abstract Testnet',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'ETH',
+    symbol: 'ETH',
+  },
+  rpcUrls: {
+    default: { http: ['https://api.testnet.abs.xyz'] },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Etherscan',
+      url: 'https://sepolia.abscan.org',
+    },
+    native: {
+      name: 'Abstract Explorer',
+      url: 'https://explorer.testnet.abs.xyz',
+    },
+  },
+  testnet: true,
+  contracts: {
+    multicall3: {
+      address: '0xF9cda624FBC7e059355ce98a31693d299FACd963',
+      blockCreated: 358349,
+    },
+    erc6492Verifier: {
+      address: '0xfB688330379976DA81eB64Fe4BF50d7401763B9C',
+      blockCreated: 431682,
+    },
+  },
+})