Guard dev health JSON parsing

Co-Authored-By: Paperclip <noreply@paperclip.ing>

scripts/dev-runner.mjs

@@ -5,7 +5,7 @@ import path from "node:path";
 import { createInterface } from "node:readline/promises";
 import { stdin, stdout } from "node:process";
 import { fileURLToPath } from "node:url";
-import { createCapturedOutputBuffer } from "./dev-runner-output.mjs";
+import { createCapturedOutputBuffer, parseJsonResponseWithLimit } from "./dev-runner-output.mjs";
 import { shouldTrackDevServerPath } from "./dev-runner-paths.mjs";
 
 const mode = process.argv[2] === "watch" ? "watch" : "dev";
@@ -430,7 +430,7 @@ async function getDevHealthPayload() {
   if (!response.ok) {
     throw new Error(`Health request failed (${response.status})`);
   }
-  return await response.json();
+  return await parseJsonResponseWithLimit(response);
 }
 
 async function waitForChildExit() {