refactor: share scoped account config patching

extensions/irc/src/onboarding.ts

@@ -1,6 +1,7 @@
 import {
   DEFAULT_ACCOUNT_ID,
   formatDocsLink,
+  patchScopedAccountConfig,
   promptChannelAccessConfig,
   resolveAccountIdForConfigure,
   setTopLevelChannelAllowFrom,
@@ -59,35 +60,14 @@ function updateIrcAccountConfig(
   accountId: string,
   patch: Partial<IrcAccountConfig>,
 ): CoreConfig {
-  const current = cfg.channels?.irc ?? {};
-  if (accountId === DEFAULT_ACCOUNT_ID) {
-    return {
-      ...cfg,
-      channels: {
-        ...cfg.channels,
-        irc: {
-          ...current,
-          ...patch,
-        },
-      },
-    };
-  }
-  return {
-    ...cfg,
-    channels: {
-      ...cfg.channels,
-      irc: {
-        ...current,
-        accounts: {
-          ...current.accounts,
-          [accountId]: {
-            ...current.accounts?.[accountId],
-            ...patch,
-          },
-        },
-      },
-    },
-  };
+  return patchScopedAccountConfig({
+    cfg,
+    channelKey: channel,
+    accountId,
+    patch,
+    ensureChannelEnabled: false,
+    ensureAccountEnabled: false,
+  }) as CoreConfig;
 }
 
 function setIrcDmPolicy(cfg: CoreConfig, dmPolicy: DmPolicy): CoreConfig {