feat: add easy-slides CLI

scripts/lib/site-base.ts

@@ -0,0 +1,17 @@
+export function normalizeSiteBase(value = '/') {
+  const trimmed = value.trim()
+  if (!trimmed || trimmed === '/')
+    return '/'
+
+  return `/${trimmed.replace(/^\/+|\/+$/g, '')}/`
+}
+
+export function joinBase(base: string, ...parts: string[]) {
+  const normalized = normalizeSiteBase(base)
+  const suffix = parts
+    .map(part => part.replace(/^\/+|\/+$/g, ''))
+    .filter(Boolean)
+    .join('/')
+
+  return suffix ? `${normalized}${suffix}/` : normalized
+}