export const PROJECT_FAVICON_FALLBACK_MARKER = "project-favicon-missing"; export function getProjectFaviconResourceKey(  environmentId: string,  workspaceRoot: string,  faviconPath?: string | null,) {  return JSON.stringify([environmentId, workspaceRoot, faviconPath || null]);} export function getProjectFaviconCacheKey(  environmentId: string,  workspaceRoot: string,  url: string,) {  let revision = url;   try {    const pathname = new URL(url, "https://t3.invalid").pathname;    revision = pathname.slice(pathname.lastIndexOf("/") + 1);  } catch {    // Keep the full value as a safe fallback for malformed URLs.  }   return JSON.stringify([environmentId, workspaceRoot, revision]);} export function isProjectFaviconFallbackUrl(url: string | null | undefined): boolean {  if (!url) return false;   try {    const pathname = new URL(url, "https://t3.invalid").pathname;    return pathname.slice(pathname.lastIndexOf("/") + 1) === PROJECT_FAVICON_FALLBACK_MARKER;  } catch {    return false;  }}