refactor: project architecture refactor, container splitting

frontend/src/lib/webapp/session.js

@@ -0,0 +1,62 @@
+export const TOKEN_STORAGE_KEY = "rw_webapp_token";
+export const CSRF_COOKIE_NAME = "rw_webapp_csrf";
+export const REFERRAL_STORAGE_KEY = "rw_webapp_referral";
+
+function ignoreStorageError(error) {
+  void error;
+}
+
+export function readCookie(name) {
+  if (typeof document === "undefined") return "";
+  const prefix = `${name}=`;
+  const cookie = document.cookie.split("; ").find((part) => part.startsWith(prefix));
+  return cookie ? decodeURIComponent(cookie.slice(prefix.length)) : "";
+}
+
+export function clearStoredToken(storageKey = TOKEN_STORAGE_KEY) {
+  if (typeof localStorage === "undefined") return;
+  localStorage.removeItem(storageKey);
+}
+
+export function markManualLogout(flagKey) {
+  try {
+    localStorage.setItem(flagKey, "1");
+  } catch (error) {
+    ignoreStorageError(error);
+  }
+}
+
+export function clearManualLogoutFlag(flagKey) {
+  try {
+    localStorage.removeItem(flagKey);
+  } catch (error) {
+    ignoreStorageError(error);
+  }
+}
+
+export function isManuallyLoggedOut(flagKey) {
+  try {
+    return localStorage.getItem(flagKey) === "1";
+  } catch {
+    return false;
+  }
+}
+
+export function rememberReferral(value) {
+  const normalized = String(value || "").trim();
+  if (!normalized) return readReferral();
+  try {
+    localStorage.setItem(REFERRAL_STORAGE_KEY, normalized);
+  } catch (error) {
+    ignoreStorageError(error);
+  }
+  return normalized;
+}
+
+export function readReferral() {
+  try {
+    return localStorage.getItem(REFERRAL_STORAGE_KEY) || "";
+  } catch {
+    return "";
+  }
+}