fix(web-probe): enforce browser no-proxy launch (#641)

Co-authored-by: Codex <codex@noreply.local>

scripts/src/hwlab-node-web-observe-runner-source.ts

@@ -22,6 +22,7 @@ const screenshotIntervalMs = positiveInteger(process.env.UNIDESK_WEB_OBSERVE_SCR
 const maxSamples = positiveInteger(process.env.UNIDESK_WEB_OBSERVE_MAX_SAMPLES, 0);
 const viewport = parseViewport(process.env.UNIDESK_WEB_OBSERVE_VIEWPORT || "1440x900");
 const playwrightProxy = proxyConfigFromEnv(baseUrl);
+const chromiumLaunchOptions = chromiumLaunchOptionsForProxy(playwrightProxy);
 const pageId = "page-" + randomBytes(4).toString("hex");
 const dirs = {
   commandsPending: path.join(stateDir, "commands", "pending"),
@@ -63,7 +64,7 @@ try {
   await writeHeartbeat({ status: "starting" });
   const launcher = await import(pathToFileURL(path.resolve("scripts/src/browser-launcher.mjs")).href);
   const { chromium } = await launcher.importPlaywright();
-  browser = await launcher.launchChromium(chromium);
+  browser = await launcher.launchChromium(chromium, chromiumLaunchOptions);
   context = await browser.newContext({ viewport, ...(playwrightProxy === null ? {} : { proxy: playwrightProxy }) });
   auth = await runControlCommand({ id: "startup-login", type: "login", createdAt: startedAt, source: "startup" }, async () => authenticate(context));
   page = await context.newPage();
@@ -301,6 +302,21 @@ function proxyConfigFromEnv(targetBaseUrl) {
   return { server: raw };
 }
 
+function chromiumLaunchOptionsForProxy(proxy) {
+  const base = { env: browserProcessEnvWithoutProxy() };
+  if (proxy === null) return { ...base, args: ["--no-proxy-server"] };
+  return { ...base, proxy };
+}
+
+function browserProcessEnvWithoutProxy() {
+  const blocked = new Set(["HTTP_PROXY", "HTTPS_PROXY", "ALL_PROXY", "NO_PROXY", "http_proxy", "https_proxy", "all_proxy", "no_proxy"]);
+  const env = {};
+  for (const [key, value] of Object.entries(process.env)) {
+    if (!blocked.has(key) && value !== undefined) env[key] = value;
+  }
+  return env;
+}
+
 function noProxyMatches(hostname, rawList) {
   const host = String(hostname || "").toLowerCase();
   if (!host) return false;
@@ -324,6 +340,11 @@ function publicNetwork(proxy) {
       server: publicProxyServer(proxy.server),
       valuesRedacted: true,
     },
+    browser: {
+      proxyMode: proxy === null ? "direct-no-proxy-server" : "explicit-playwright-proxy",
+      proxyEnvCleared: true,
+      valuesRedacted: true,
+    },
     valuesRedacted: true,
   };
 }