feat: add LMS web client

src/lms-renderer/features/workspace/remoteWorkspaceTarget.ts

@@ -0,0 +1,24 @@
+const extractStringRecord = (value: unknown): Record<string, unknown> | null => (
+  value && typeof value === 'object' && !Array.isArray(value)
+    ? value as Record<string, unknown>
+    : null
+)
+
+export const readNestedString = (value: unknown, keys: string[]): string | null => {
+  let current: unknown = value
+  for (const key of keys) {
+    const record = extractStringRecord(current)
+    if (!record) return null
+    current = record[key]
+  }
+  return typeof current === 'string' && current.trim() ? current.trim() : null
+}
+
+export const parseHostFromUrl = (value?: string | null): string | null => {
+  if (!value?.trim()) return null
+  try {
+    return new URL(value).hostname
+  } catch {
+    return value.trim()
+  }
+}