added some text handling 3

src/utils/adminHelpFormat.ts

@@ -0,0 +1,40 @@
+/** ساختار متن راهنما — توضیح + فرمول اختیاری در کادر جدا */
+
+export type AdminHelpContent = {
+  description: string
+  formula?: string
+}
+
+const FORMULA_MARKER = '\n\n__FORMULA__\n'
+
+export function adminHelp(description: string, formula?: string): string {
+  const body = description.trim()
+  if (!formula?.trim()) return body
+  return `${body}${FORMULA_MARKER}${formula.trim()}`
+}
+
+export function parseAdminHelp(input: string | AdminHelpContent | undefined | null): AdminHelpContent {
+  if (!input) return { description: '' }
+  if (typeof input !== 'string') {
+    return {
+      description: input.description?.trim() ?? '',
+      formula: input.formula?.trim() || undefined,
+    }
+  }
+
+  const marked = input.split(FORMULA_MARKER)
+  if (marked.length === 2) {
+    return {
+      description: marked[0].trim(),
+      formula: marked[1].trim() || undefined,
+    }
+  }
+
+  return { description: input.trim() }
+}
+
+export function adminHelpPlainText(content: AdminHelpContent): string {
+  const parts = [content.description].filter(Boolean)
+  if (content.formula) parts.push(content.formula)
+  return parts.join('\n\n')
+}