refactor: trim tool config exports

src/agents/tool-display-config.ts

@@ -569,9 +569,3 @@ export const TOOL_DISPLAY_CONFIG: ToolDisplayConfig = {
     },
   },
 };
-
-export function serializeToolDisplayConfig(
-  config: ToolDisplayConfig = TOOL_DISPLAY_CONFIG,
-): string {
-  return `${JSON.stringify(config, null, 2)}\n`;
-}

src/agents/tool-display-exec-shell.ts

@@ -226,7 +226,7 @@ export function unwrapShellWrapper(command: string): string {
   return inner ? (stripOuterQuotes(inner) ?? command) : command;
 }
 
-export function scanTopLevelChars(
+function scanTopLevelChars(
   command: string,
   visit: (char: string, index: number) => boolean | void,
 ): void {