refactor: dedupe core error formatting call sites

src/cli/gateway-cli/run.ts

@@ -36,7 +36,6 @@ import { withProgress } from "../progress.js";
 import { ensureDevGatewayConfig } from "./dev.js";
 import { runGatewayLoop } from "./run-loop.js";
 import {
-  describeUnknownError,
   extractGatewayMiskeys,
   maybeExplainGatewayServiceStop,
   parsePort,
@@ -559,7 +558,7 @@ async function runGatewayCommand(opts: GatewayRunOpts) {
     }
   } catch (err) {
     if (isGatewayLockError(err)) {
-      const errMessage = describeUnknownError(err);
+      const errMessage = formatErrorMessage(err);
       defaultRuntime.error(
         `Gateway failed to start: ${errMessage}\nIf the gateway is supervised, stop it with: ${formatCliCommand("openclaw gateway stop")}`,
       );

src/cli/gateway-cli/shared.ts

@@ -4,7 +4,6 @@ import {
   resolveGatewayWindowsTaskName,
 } from "../../daemon/constants.js";
 import { resolveGatewayService } from "../../daemon/service.js";
-import { formatErrorMessage } from "../../infra/errors.js";
 import { defaultRuntime } from "../../runtime.js";
 import { formatCliCommand } from "../command-format.js";
 import { parsePort } from "../shared/parse-port.js";
@@ -21,10 +20,6 @@ export const toOptionString = (value: unknown): string | undefined => {
   return undefined;
 };
 
-export function describeUnknownError(err: unknown): string {
-  return formatErrorMessage(err);
-}
-
 export function extractGatewayMiskeys(parsed: unknown): {
   hasGatewayToken: boolean;
   hasRemoteToken: boolean;