Add human-led conversation learning loop

src/services/conversation-learning-redactor.ts

@@ -0,0 +1,16 @@
+const URL = /https?:\/\/\S+/gi;
+const EMAIL = /\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,}\b/gi;
+const PHONE = /(?<!\w)(?:\+?\d[\d ()-]{7,}\d)(?!\w)/g;
+const USERNAME = /(?:^|\s)(?:u\/|@)[A-Za-z0-9_-]{2,}/g;
+
+/** Removes direct identifiers before durable example storage or prompt use. */
+export function redactLearningText(value: string, maxLength = 500): string {
+  return value
+    .replace(URL, '[url]')
+    .replace(EMAIL, '[email]')
+    .replace(PHONE, '[phone]')
+    .replace(USERNAME, (match) => `${match[0] === ' ' ? ' ' : ''}[username]`)
+    .replace(/\s+/g, ' ')
+    .trim()
+    .slice(0, maxLength);
+}