fix(camera): add 30-second scan waiting watchdog

h5/test/analyze-timeout.js

@@ -8,9 +8,9 @@ const source = fs.readFileSync(path.join(__dirname, '../js/app.js'), 'utf8');
 const start = source.indexOf('  var ANALYZE_TIMEOUT_MS =');
 const end = source.indexOf('  /* ─── SkinScore viewModel', start);
 assert(start >= 0 && end > start);
-function setup() {
-  let timer, complete, signal, result;
-  const ctx = { IS_MOCK: false, camSeq: 1, AbortController, CaptureQuality: require('../js/capture-quality'), captureDiagnostics: [],
+function setup(withAbort = true) {
+  let timer, complete, signal, result, calls = 0;
+  const ctx = { IS_MOCK: false, camSeq: 1, AbortController: withAbort ? AbortController : undefined, CaptureQuality: require('../js/capture-quality'), captureDiagnostics: [],
     setTimeout(fn, delay) { timer = { fn, delay }; return 1; },
     clearTimeout() { timer = null; },
     fetch(url, options) {
@@ -18,21 +18,20 @@ function setup() {
       signal = options.signal;
       return new Promise((resolve, reject) => {
         complete = () => resolve({ json: async () => ({ ok: true, report_saved: true }) });
-        signal.addEventListener('abort', () => { const e = new Error('aborted'); e.name = 'AbortError'; reject(e); });
+        if (signal) signal.addEventListener('abort', () => { const e = new Error('aborted'); e.name = 'AbortError'; reject(e); });
       });
     }
   };
   vm.createContext(ctx);
   vm.runInContext(source.slice(start, end), ctx);
-  ctx.requestAnalyze(['front', 'left', 'right'], 1, {}, (...args) => { result = args; });
+  const cancel = ctx.requestAnalyze(['front', 'left', 'right'], 1, {}, (...args) => { result = args; calls++; });
   return { ctx, get timer() { return timer; }, get signal() { return signal; },
-    get result() { return result; }, finish() { complete(); } };
+    get result() { return result; }, get calls() { return calls; }, cancel, finish() { complete(); } };
 }
 const flush = () => new Promise(resolve => setImmediate(resolve));
 (async () => {
   const delayed = setup();
-  assert.equal(delayed.timer.delay, 150000);
-  assert(delayed.timer.delay > 60000 * 2 + 4000, 'Allow both backend attempts plus retry wait');
+  assert.equal(delayed.timer.delay, 30000);
   delayed.finish();
   await flush();
   assert.equal(delayed.result[0], null);
@@ -44,11 +43,18 @@ const flush = () => new Promise(resolve => setImmediate(resolve));
   await flush();
   assert(expired.signal.aborted);
   assert.match(expired.result[0], /检测服务开小差/);
+  assert.equal(expired.calls, 1);
+  const legacy = setup(false);
+  legacy.timer.fn();
+  assert.equal(legacy.result[0], '检测服务开小差了，请重试');
+  legacy.finish();await flush();assert.equal(legacy.calls,1,'late success never replaces timeout');
+  const aborted = setup();aborted.cancel();await flush();
+  assert(aborted.signal.aborted);assert.equal(aborted.result,undefined);assert.equal(aborted.timer,null);
   const canceled = setup();
   canceled.ctx.camSeq++;
   canceled.finish();
   await flush();
   assert.equal(canceled.result, undefined);
   assert.equal(canceled.timer, null);
-  console.log('PASS: frontend timeout covers backend retry budget; success, timeout, stale response, timer cleanup');
+  console.log('PASS: 30s request timeout, legacy no-AbortController fallback, single completion, cancellation, late response suppression and timer cleanup');
 })().catch(e => { console.error(e); process.exitCode = 1; });