Function validateAndPingUrlOGC

validateAndPingUrlOGC(
    targetUrl: string,
    configProxyUrl?: string,
    timeoutMs?: undefined,
): Promise<PingResult>
Validates a URL's syntax and tests whether the server is reachable, with OGC GetCapabilities fallback.

Strategy:
1. Calls pingUrl for basic HEAD + file probe validation.
2. If HEAD returned 4xx/5xx (server alive but bare path fails), tries OGC GetCapabilities directly (WMS/WFS/WMTS) since CORS was fine.
3. If HEAD returned CORS error, tries OGC GetCapabilities through the proxy.
The function never throws — all failures are returned as part of the result object.
Parameters
- targetUrl: string
  The URL to validate and ping
- configProxyUrl: string = CONFIG_PROXY_URL
  Proxy URL to use when necessary (defaults to CONFIG_PROXY_URL)
- timeoutMs: undefined = undefined
  Optional request timeout in milliseconds (defaults to none)
Returns Promise<PingResult>
A promise that resolves with a result object containing isValid, isReachable, needsProxy, status, and optional error
- Defined in packages/geoview-core/src/core/utils/utilities.ts:589