Fix: logout instantly if backend connection not established or user not found in db

layouts/_default/baseof.html

@@ -110,72 +110,7 @@
 		</header>
 		<main class="main">{{ block "main" . }}{{ end }}</main>
 		<footer class="footer">{{ partial "footer.html" . }}</footer>
-		{{ partial "body/body-end.html" . }} {{ partial "body/body-end.html" . }}
-		<script>
-			(function () {
-				var path = window.location.pathname;
-				if (path === '/login/' || path === '/signup/') return;
-
-				// ── Save current page before navigating to login/signup ──
-				document
-					.querySelectorAll('a[href="/login/"], a[href="/signup/"]')
-					.forEach(function (a) {
-						a.addEventListener('click', function () {
-							sessionStorage.setItem('f4_login_next', path);
-						});
-					});
-
-				// ── Validate session on every page load ──
-				if (!localStorage.getItem('f4_username')) return;
-
-				// Skip check if we just logged in (5 second grace period)
-				var _loginTime = parseInt(localStorage.getItem('f4_login_time') || '0', 10);
-				if (Date.now() - _loginTime < 5000) return;
-
-				fetch('https://backend.freedoms4.org/auth.php', {
-					method: 'POST',
-					headers: { 'Content-Type': 'application/json' },
-					credentials: 'include',
-					body: JSON.stringify({ action: 'check_session' }),
-				})
-					.then(function (r) {
-						return r.json();
-					})
-					.then(function (data) {
-						if (!data.valid) {
-							if (data.db_error) {
-								// DB error — count consecutive failures, force logout after 3
-								var fails =
-									parseInt(localStorage.getItem('f4_session_fails') || '0', 10) +
-									1;
-								localStorage.setItem('f4_session_fails', fails);
-								if (fails >= 3) {
-									localStorage.removeItem('f4_username');
-									localStorage.removeItem('f4_login_time');
-									localStorage.removeItem('f4_session_fails');
-									window.location.reload();
-								}
-							} else {
-								// Session truly invalid — log out immediately
-								localStorage.removeItem('f4_username');
-								localStorage.removeItem('f4_login_time');
-								localStorage.removeItem('f4_session_fails');
-								window.location.reload();
-							}
-						} else {
-							// Valid session — reset failure counter
-							localStorage.removeItem('f4_session_fails');
-						}
-					})
-					.catch(function () {
-						// Backend completely unreachable (404, files gone, server down)
-						// Force logout immediately
-						localStorage.removeItem('f4_username');
-						localStorage.removeItem('f4_login_time');
-						localStorage.removeItem('f4_session_fails');
-						window.location.reload();
-					});
-			})();
-		</script>
+		{{ partial "body/body-end.html" . }}
+		<script src="/js/session-check.js"></script>
 	</body>
 </html>