Refactor and improve external URL checks

- Move external URL checks to its own module under `tests/`. This
  separates them from integration test, addressing long runs and
  frequent failures that led to ignoring test results.
- Move `check-desktop-runtime-errors` to `tests/checks` to keep all
  test-related checks into one directory.
- Replace `ts-node` with `vite` for running
  `check-desktop-runtime-errors` to maintain a consistent execution
  environment across checks.
- Implement a timeout for each fetch call.
- Be nice to external sources, wait 5 seconds before sending another
  request to an URL under same domain. This solves rate-limiting issues.
- Instead of running test on every push/pull request, run them only
  weekly.
- Do not run tests on each commit/PR but only scheduled (weekly) to
  minimize noise.
- Fix URLs are not captured correctly inside backticks or parenthesis.

tests/checks/desktop-runtime-errors/check-desktop-runtime-errors/utils/run-command.ts

@@ -0,0 +1,58 @@
+import { exec } from 'child_process';
+import { indentText } from './text';
+import type { ExecOptions, ExecException } from 'child_process';
+
+const TIMEOUT_IN_SECONDS = 180;
+const MAX_OUTPUT_BUFFER_SIZE = 1024 * 1024; // 1 MB
+
+export function runCommand(
+  command: string,
+  options?: ExecOptions,
+): Promise<CommandResult> {
+  return new Promise((resolve) => {
+    options = {
+      cwd: process.cwd(),
+      timeout: TIMEOUT_IN_SECONDS * 1000,
+      maxBuffer: MAX_OUTPUT_BUFFER_SIZE * 2,
+      ...(options ?? {}),
+    };
+
+    exec(command, options, (error, stdout, stderr) => {
+      let errorText: string | undefined;
+      if (error || stderr?.length > 0) {
+        errorText = formatError(command, error, stdout, stderr);
+      }
+      resolve({
+        stdout,
+        error: errorText,
+      });
+    });
+  });
+}
+
+export interface CommandResult {
+  readonly stdout: string;
+  readonly error?: string;
+}
+
+function formatError(
+  command: string,
+  error: ExecException | undefined,
+  stdout: string | undefined,
+  stderr: string | undefined,
+) {
+  const errorParts = [
+    'Error while running command.',
+    `Command:\n${indentText(command, 1)}`,
+  ];
+  if (error?.toString().trim()) {
+    errorParts.push(`Error:\n${indentText(error.toString(), 1)}`);
+  }
+  if (stderr?.trim()) {
+    errorParts.push(`stderr:\n${indentText(stderr, 1)}`);
+  }
+  if (stdout?.trim()) {
+    errorParts.push(`stdout:\n${indentText(stdout, 1)}`);
+  }
+  return errorParts.join('\n---\n');
+}