refactor: trim extension helper exports

extensions/qqbot/src/engine/session/session-store.ts

@@ -213,14 +213,6 @@ export function clearSession(accountId: string): void {
   }
 }
 
-/** Update only lastSeq on the persisted session. */
-export function updateLastSeq(accountId: string, lastSeq: number): void {
-  const existing = loadSession(accountId);
-  if (existing?.sessionId) {
-    saveSession({ ...existing, lastSeq });
-  }
-}
-
 /** Load all saved sessions from disk. */
 export function getAllSessions(): SessionState[] {
   const sessions = new Map<string, SessionState>();

extensions/tlon/src/urbit/send.ts

@@ -151,18 +151,6 @@ export async function sendGroupMessageWithStory({
   return { channel: "tlon", messageId: `${fromShip}/${sentAt}` };
 }
 
-export function buildMediaText(text: string | undefined, mediaUrl: string | undefined): string {
-  const cleanText = text?.trim() ?? "";
-  const cleanUrl = mediaUrl?.trim() ?? "";
-  if (cleanText && cleanUrl) {
-    return `${cleanText}\n${cleanUrl}`;
-  }
-  if (cleanUrl) {
-    return cleanUrl;
-  }
-  return cleanText;
-}
-
 /**
  * Build a story with text and optional media (image)
  */

extensions/xai/src/responses-tool-shared.ts

@@ -18,7 +18,7 @@ function extractUrlCitations(annotations: unknown): string[] {
     .map((annotation) => annotation.url as string);
 }
 
-export const XAI_RESPONSES_BASE_URL = "https://api.x.ai/v1";
+const XAI_RESPONSES_BASE_URL = "https://api.x.ai/v1";
 export const XAI_RESPONSES_ENDPOINT = `${XAI_RESPONSES_BASE_URL}/responses`;
 
 function trimString(value: unknown): string | undefined {