tweak

frontend/src/contexts/AuthContext.jsx

@@ -1,4 +1,4 @@
-import { createContext, useReducer, useContext, useEffect } from "react";
+import { createContext, useReducer, useContext, useEffect, useCallback, useRef } from "react";
 import authReducer, { initialState, ACTION_TYPES } from "../reducers/authReducer";
 import { loginUser, registerAfterCheckout } from "../api/auth";
 import { getAccount } from "../api/account";
@@ -7,58 +7,79 @@ const AuthContext = createContext(null);
 
 export function AuthProvider({ children }) {
   const [state, dispatch] = useReducer(authReducer, initialState);
+  const fetchedRef = useRef(false);
 
-  // On mount, if we have a token in localStorage, hydrate the user object
-  // by fetching the account from the backend.
-  useEffect(() => {
-    if (!state.token || state.user) return;
-
-    getAccount()
-      .then((account) => {
-        dispatch({
-          type: ACTION_TYPES.SET_USER,
-          payload: {
-            id: account.user_id,
-            email: account.email,
-            subscriptionStatus: account.subscription_status,
-            subscriptionTier: account.subscription_tier,
-          },
-        });
-      })
-      .catch(() => {
-        dispatch({ type: ACTION_TYPES.LOGOUT });
+  const fetchAccount = useCallback(async () => {
+    try {
+      const account = await getAccount();
+      dispatch({
+        type: ACTION_TYPES.SET_USER,
+        payload: {
+          id: account.user_id,
+          email: account.email,
+          subscriptionStatus: account.subscription_status,
+          subscriptionTier: account.subscription_tier,
+          tierLimits: account.tier_limits,
+          addressCount: account.address_count,
+        },
       });
-  }, [state.token, state.user]);
+    } catch {
+      dispatch({ type: ACTION_TYPES.LOGOUT });
+    }
+  }, []);
+
+  // On mount, if we have a token in localStorage, hydrate user from backend.
+  useEffect(() => {
+    if (!state.token || fetchedRef.current) return;
+    fetchedRef.current = true;
+    fetchAccount();
+  }, [state.token, fetchAccount]);
 
   async function login(email, password) {
     const data = await loginUser(email, password);
     dispatch({ type: ACTION_TYPES.LOGIN_SUCCESS, payload: data });
+    fetchedRef.current = false;
     return data;
   }
 
   async function register(email, password, sessionId) {
     const data = await registerAfterCheckout(email, password, sessionId);
     dispatch({ type: ACTION_TYPES.LOGIN_SUCCESS, payload: data });
+    fetchedRef.current = false;
     return data;
   }
 
   function logout() {
+    fetchedRef.current = false;
     dispatch({ type: ACTION_TYPES.LOGOUT });
   }
 
+  function refreshAccount() {
+    fetchAccount();
+  }
+
   const isAuthenticated = state.isAuthenticated && !!state.token;
   const isSubscribed =
     state.user?.subscriptionStatus === "active" ||
     state.user?.subscriptionStatus === "trialing";
 
+  const tierLimits = state.user?.tierLimits || {
+    max_addresses: 1,
+    max_alert_types: 1,
+    allowed_channels: ["email"],
+  };
+
   const value = {
     user: state.user,
     token: state.token,
     isAuthenticated,
     isSubscribed,
+    tierLimits,
+    userTier: state.user?.subscriptionTier || "free",
     login,
     register,
     logout,
+    refreshAccount,
     dispatch,
     ACTION_TYPES,
   };

frontend/src/pages/subscribe/Subscribe.jsx

@@ -1,4 +1,4 @@
-import { useState, useEffect } from "react";
+import { useState, useEffect, useRef } from "react";
 import { useNavigate, useSearchParams } from "react-router-dom";
 import { useAuth } from "../../contexts/AuthContext";
 import { createOnboardingCheckout, activateFreeTier } from "../../api/stripe";
@@ -26,12 +26,17 @@ export default function Subscribe() {
     confirmPassword: "",
   });
 
+  const registerCalledRef = useRef(false);
+
   function set(field, value) {
     setData((prev) => ({ ...prev, [field]: value }));
   }
 
-  // Handle return from Stripe checkout redirect
+  // Handle return from Stripe checkout redirect.
+  // The ref guard prevents React StrictMode from double-firing this.
   useEffect(() => {
+    if (registerCalledRef.current) return;
+
     const payment = searchParams.get("payment");
     const sessionId = searchParams.get("session_id");
 
@@ -44,7 +49,6 @@ export default function Subscribe() {
 
     if (payment !== "success" || !sessionId) return;
 
-    // Recover credentials stashed before the Stripe redirect
     const savedEmail = sessionStorage.getItem("kp_onboard_email");
     const savedPassword = sessionStorage.getItem("kp_onboard_password");
 
@@ -56,6 +60,7 @@ export default function Subscribe() {
       return;
     }
 
+    registerCalledRef.current = true;
     setSearchParams({}, { replace: true });
     setLoading(true);
 
@@ -66,6 +71,7 @@ export default function Subscribe() {
         navigate("/addresses", { replace: true });
       })
       .catch((err) => {
+        registerCalledRef.current = false;
         setError("Registration failed: " + err.message);
         setStep(1);
       })