feat(devops): diagnose slow HK requests and dependency timings

src/lib/services/import/core/curl-fetch.ts

@@ -1,6 +1,7 @@
 import { execFile } from "node:child_process";
 import { existsSync, promises as fs } from "node:fs";
 import { promisify } from "node:util";
+import { measureDependency } from "@/lib/performance-diagnostics";
 
 const execFileAsync = promisify(execFile);
 
@@ -46,10 +47,12 @@ export async function curlFetchText(
 	url: string,
 	timeoutMs = 30_000,
 ): Promise<string> {
-	const { stdout } = await execFileAsync(CURL_BIN, curlArgs(url, []), {
-		timeout: timeoutMs,
-		maxBuffer: 512 * 1024 * 1024,
-	});
+	const { stdout } = await measureDependency("external", () =>
+		execFileAsync(CURL_BIN, curlArgs(url, []), {
+			timeout: timeoutMs,
+			maxBuffer: 512 * 1024 * 1024,
+		}),
+	);
 	return stdout;
 }
 
@@ -62,28 +65,30 @@ export async function curlDownload(
 ): Promise<{ ok: boolean; size: number }> {
 	try {
 		const cookieArgs = cookieHeader ? ["-H", `Cookie: ${cookieHeader}`] : [];
-		await execFileAsync(
-			CURL_BIN,
-			[
-				"-sSL",
-				"--compressed",
-				"--fail",
-				"--max-time",
-				"30",
-				"--connect-timeout",
-				"10",
-				"-A",
-				CURL_USER_AGENT,
-				"-H",
-				"Accept: application/octet-stream,*/*;q=0.9",
-				"-H",
-				"Accept-Language: en-US,en;q=0.9",
-				...cookieArgs,
-				"-o",
-				destPath,
-				url,
-			],
-			{ timeout: timeoutMs },
+		await measureDependency("external", () =>
+			execFileAsync(
+				CURL_BIN,
+				[
+					"-sSL",
+					"--compressed",
+					"--fail",
+					"--max-time",
+					"30",
+					"--connect-timeout",
+					"10",
+					"-A",
+					CURL_USER_AGENT,
+					"-H",
+					"Accept: application/octet-stream,*/*;q=0.9",
+					"-H",
+					"Accept-Language: en-US,en;q=0.9",
+					...cookieArgs,
+					"-o",
+					destPath,
+					url,
+				],
+				{ timeout: timeoutMs },
+			),
 		);
 		const stat = await fs.stat(destPath);
 		return { ok: stat.size > 0, size: stat.size };