initial: bootstrap from BukidBountyApp base

resources/js/workers/session-guard-worker.js

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+/**
+ * Session Guard Polling Worker
+ *
+ * Fallback for environments where SSE (EventSource) is unavailable
+ * (e.g. insecure HTTP contexts where Service Workers cannot run).
+ *
+ * Polls /get/isloggedin and /get/isExec at regular intervals and
+ * posts results back to the main thread.
+ */
+
+let isRunning = false;
+let loginTimer = null;
+let execTimer = null;
+
+const LOGIN_INTERVAL = 10000;  // 10 seconds
+const EXEC_INTERVAL  = 30000;  // 30 seconds
+
+async function checkLogin() {
+  try {
+    const res = await fetch('/get/isloggedin');
+    if (res.ok) {
+      const data = await res.json();
+      self.postMessage({ type: 'session', data });
+    } else if (res.status === 401 || res.status === 419) {
+      self.postMessage({ type: 'session', data: { isloggedin: false } });
+    }
+  } catch (e) {
+    // Network error — skip this tick silently
+  }
+}
+
+async function checkExec() {
+  try {
+    const res = await fetch('/get/isExec');
+    if (res.ok) {
+      const text = await res.text();
+      if (text && text.trim()) {
+        self.postMessage({ type: 'exec', data: text.trim() });
+      }
+    }
+  } catch (e) {
+    // Network error — skip this tick silently
+  }
+}
+
+function start() {
+  if (isRunning) return;
+  isRunning = true;
+
+  // Run immediately on start
+  checkLogin();
+  checkExec();
+
+  loginTimer = setInterval(checkLogin, LOGIN_INTERVAL);
+  execTimer  = setInterval(checkExec, EXEC_INTERVAL);
+}
+
+function stop() {
+  isRunning = false;
+  if (loginTimer) { clearInterval(loginTimer); loginTimer = null; }
+  if (execTimer)  { clearInterval(execTimer);  execTimer  = null; }
+}
+
+// Listen for commands from the main thread
+self.onmessage = (event) => {
+  const { type } = event.data || {};
+  if (type === 'start') {
+    start();
+  } else if (type === 'stop') {
+    stop();
+    self.close();
+  }
+};
+
+// Auto-start
+start();