[Init] Initial commit - NetMesh terminal manager

domain/commandBlocklist.ts

@@ -0,0 +1,23 @@
+import commandBlocklistTable from '../lib/commandBlocklist.json';
+
+const LEGACY_DEFAULT_PATTERNS = [
+  ...commandBlocklistTable.common,
+  ...commandBlocklistTable.posixNative,
+  ...commandBlocklistTable.posix,
+];
+
+/**
+ * Add PowerShell defaults only to a complete pre-shell-aware list.
+ * If any PowerShell default is already present, the list has been upgraded or
+ * customized and is left as saved.
+ */
+export function migrateLegacyCommandBlocklist(blocklist: string[]): string[] {
+  const configured = new Set(blocklist);
+  if (!LEGACY_DEFAULT_PATTERNS.every((pattern) => configured.has(pattern))) {
+    return blocklist;
+  }
+  if (commandBlocklistTable.powershell.some((pattern) => configured.has(pattern))) {
+    return blocklist;
+  }
+  return [...blocklist, ...commandBlocklistTable.powershell];
+}