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/utils/chain/defineChain.ts

@@ -0,0 +1,44 @@
+import type { Chain, ChainFormatters } from '../../types/chain.js'
+import type { Assign, Prettify } from '../../types/utils.js'
+
+export type DefineChainReturnType<chain extends Chain = Chain> = Prettify<
+  chain &
+    (chain['extendSchema'] extends Record<string, unknown>
+      ? {
+          extend: <const extended extends chain['extendSchema']>(
+            extended: extended,
+          ) => Assign<chain, extended>
+        }
+      : {})
+>
+
+export function defineChain<
+  formatters extends ChainFormatters,
+  const chain extends Chain<formatters>,
+>(chain: chain): DefineChainReturnType<Assign<Chain<undefined>, chain>> {
+  const chainInstance = {
+    formatters: undefined,
+    fees: undefined,
+    serializers: undefined,
+    ...chain,
+  } as Assign<Chain<undefined>, chain>
+
+  function extend(base: typeof chainInstance) {
+    type ExtendFn = (base: typeof chainInstance) => unknown
+    return (fnOrExtended: ExtendFn | Record<string, unknown>) => {
+      const properties = (
+        typeof fnOrExtended === 'function' ? fnOrExtended(base) : fnOrExtended
+      ) as (typeof chainInstance)['extendSchema']
+      const combined = { ...base, ...properties }
+      return Object.assign(combined, { extend: extend(combined) })
+    }
+  }
+
+  return Object.assign(chainInstance, {
+    extend: extend(chainInstance),
+  }) as never
+}
+
+export function extendSchema<schema extends Record<string, unknown>>(): schema {
+  return {} as schema
+}