feat(elasticsearch): add custom checks and tabular REST results

apps/desktop/src/lib/connection/elasticsearchKibanaProxy.ts

@@ -1,8 +1,10 @@
 export type ElasticsearchConnectionMode = "direct" | "kibana";
 
 export interface ElasticsearchExternalConfig {
-  mode: "kibana";
+  mode?: "kibana" | "direct";
   kibanaBasePath?: string;
+  /** GET path for connect/test/health. Empty means GET /. */
+  connectivityCheckPath?: string;
 }
 
 function externalConfigRecord(value: unknown): Record<string, unknown> {
@@ -14,6 +16,16 @@ export function normalizeKibanaBasePath(value: string): string {
   return path ? `/${path}` : "";
 }
 
+/** Normalize a connectivity-check path. Empty → "" (driver defaults to GET /). */
+export function normalizeElasticsearchConnectivityCheckPath(value: string): string {
+  const raw = value.trim();
+  if (!raw) return "";
+  const line = raw.split(/\r?\n/, 1)[0]?.trim() ?? "";
+  const withoutMethod = line.replace(/^GET\s+/i, "").trim();
+  if (!withoutMethod || withoutMethod === "/") return "";
+  return withoutMethod.startsWith("/") ? withoutMethod : `/${withoutMethod}`;
+}
+
 export function elasticsearchConnectionModeFromConfig(value: unknown): ElasticsearchConnectionMode {
   const config = externalConfigRecord(value);
   return config.mode === "kibana" ? "kibana" : "direct";
@@ -26,8 +38,20 @@ export function elasticsearchKibanaBasePathFromConfig(value: unknown): string {
   return typeof path === "string" ? normalizeKibanaBasePath(path) : "";
 }
 
-export function buildElasticsearchExternalConfig(mode: ElasticsearchConnectionMode, kibanaBasePath: string): ElasticsearchExternalConfig | undefined {
-  if (mode !== "kibana") return undefined;
+export function elasticsearchConnectivityCheckPathFromConfig(value: unknown): string {
+  const config = externalConfigRecord(value);
+  const path = config.connectivityCheckPath;
+  return typeof path === "string" ? normalizeElasticsearchConnectivityCheckPath(path) : "";
+}
+
+export function buildElasticsearchExternalConfig(mode: ElasticsearchConnectionMode, kibanaBasePath: string, connectivityCheckPath = ""): ElasticsearchExternalConfig | undefined {
+  const checkPath = normalizeElasticsearchConnectivityCheckPath(connectivityCheckPath);
+  if (mode !== "kibana") {
+    return checkPath ? { connectivityCheckPath: checkPath } : undefined;
+  }
   const normalizedPath = normalizeKibanaBasePath(kibanaBasePath);
-  return normalizedPath ? { mode: "kibana", kibanaBasePath: normalizedPath } : { mode: "kibana" };
+  const config: ElasticsearchExternalConfig = { mode: "kibana" };
+  if (normalizedPath) config.kibanaBasePath = normalizedPath;
+  if (checkPath) config.connectivityCheckPath = checkPath;
+  return config;
 }