refactor: remove stale extension helpers

extensions/google-meet/src/transports/chrome.ts

@@ -699,10 +699,6 @@ export async function recoverCurrentMeetTabOnNode(params: {
   };
 }
 
-export type GoogleMeetCurrentTabRecoveryResult = Awaited<
-  ReturnType<typeof recoverCurrentMeetTab | typeof recoverCurrentMeetTabOnNode>
->;
-
 export async function launchChromeMeetOnNode(params: {
   runtime: PluginRuntime;
   config: GoogleMeetConfig;

extensions/mattermost/src/mattermost/slash-commands.ts

@@ -537,22 +537,6 @@ export function isSlashCommandsEnabled(config: MattermostSlashCommandConfig): bo
   return false;
 }
 
-export function collectMattermostSlashCallbackPaths(raw?: Partial<MattermostSlashCommandConfig>) {
-  const config = resolveSlashCommandConfig(raw);
-  const paths = new Set<string>([config.callbackPath]);
-  if (typeof config.callbackUrl === "string" && config.callbackUrl.trim()) {
-    try {
-      const pathname = new URL(config.callbackUrl).pathname;
-      if (pathname) {
-        paths.add(pathname);
-      }
-    } catch {
-      // Ignore invalid callback URLs and keep the normalized callback path only.
-    }
-  }
-  return [...paths];
-}
-
 /**
  * Build the callback URL that Mattermost will POST to when a command is invoked.
  */

extensions/synology-chat/src/channel.test-mocks.ts

@@ -1,7 +1,6 @@
 import type { IncomingMessage, ServerResponse } from "node:http";
 import type { Mock } from "vitest";
 import { vi } from "vitest";
-import type { ResolvedSynologyChatAccount } from "./types.js";
 
 export type RegisteredRoute = {
   path: string;
@@ -175,25 +174,3 @@ vi.mock("./runtime.js", () => ({
   })),
   setSynologyRuntime: vi.fn(),
 }));
-
-export function makeSecurityAccount(
-  overrides: Partial<ResolvedSynologyChatAccount> = {},
-): ResolvedSynologyChatAccount {
-  return {
-    accountId: "default",
-    enabled: true,
-    token: "t",
-    incomingUrl: "https://nas/incoming",
-    nasHost: "h",
-    webhookPath: "/w",
-    webhookPathSource: "default",
-    dangerouslyAllowNameMatching: false,
-    dangerouslyAllowInheritedWebhookPath: false,
-    dmPolicy: "allowlist" as const,
-    allowedUserIds: [],
-    rateLimitPerMinute: 30,
-    botName: "Bot",
-    allowInsecureSsl: false,
-    ...overrides,
-  };
-}

extensions/xai/src/code-execution-shared.ts

@@ -5,7 +5,6 @@ import {
   XAI_RESPONSES_ENDPOINT,
 } from "./responses-tool-shared.js";
 import {
-  coerceXaiToolConfig,
   resolveNormalizedXaiToolModel,
   resolvePositiveIntegerToolConfig,
 } from "./tool-config-shared.js";
@@ -14,12 +13,6 @@ import { type XaiWebSearchResponse } from "./web-search-shared.js";
 export const XAI_CODE_EXECUTION_ENDPOINT = XAI_RESPONSES_ENDPOINT;
 export const XAI_DEFAULT_CODE_EXECUTION_MODEL = "grok-4-1-fast";
 
-export type XaiCodeExecutionConfig = {
-  apiKey?: unknown;
-  model?: unknown;
-  maxTurns?: unknown;
-};
-
 export type XaiCodeExecutionResponse = XaiWebSearchResponse & {
   output?: Array<{
     type?: string;
@@ -33,12 +26,6 @@ export type XaiCodeExecutionResult = {
   outputTypes: string[];
 };
 
-export function resolveXaiCodeExecutionConfig(
-  config?: Record<string, unknown>,
-): XaiCodeExecutionConfig {
-  return coerceXaiToolConfig(config) as XaiCodeExecutionConfig;
-}
-
 export function resolveXaiCodeExecutionModel(config?: Record<string, unknown>): string {
   return resolveNormalizedXaiToolModel({
     config,