Add guest auth and save-account flow

Introduce anonymous sign-in with in-app saving, guest recovery warnings, paywall prompts, and admin guest labeling.

apps/mobile/src/lib/errors.ts

@@ -10,23 +10,27 @@ interface ErrorMapping {
     message: string;
 }
 
-const AUTH_ERROR_MAPPINGS: ErrorMapping[] = [
-    { pattern: /invalid login credentials/i, message: "Incorrect email or password. Please try again." },
-    { pattern: /email not confirmed/i, message: "Please verify your email before signing in." },
-    { pattern: /user already registered/i, message: "An account with this email already exists." },
-    { pattern: /invalid email/i, message: "Please enter a valid email address." },
-    { pattern: /password.*too short/i, message: "Password must be at least 8 characters." },
-    { pattern: /password.*too weak/i, message: "Please choose a stronger password." },
-    { pattern: /rate limit/i, message: "Too many attempts. Please wait a moment and try again." },
-    { pattern: /email rate limit/i, message: "Too many emails sent. Please wait before requesting another." },
-    { pattern: /same as/i, message: "New password must be different from your current password." },
-    { pattern: /session.*expired/i, message: "Your session has expired. Please log in again." },
-    { pattern: /invalid.*token/i, message: "This link has expired. Please request a new one." },
-    { pattern: /otp.*expired/i, message: "This code has expired. Please request a new one." },
-    { pattern: /signups.*disabled/i, message: "Sign ups are currently disabled. Please try again later." },
-    { pattern: /user not found/i, message: "No account found with this email." },
-    { pattern: /provider.*disabled/i, message: "This sign-in method is currently unavailable." },
-];
+const AUTH_ERROR_MAPPINGS: ErrorMapping[] = [
+    { pattern: /invalid login credentials/i, message: "Incorrect email or password. Please try again." },
+    { pattern: /email not confirmed/i, message: "Please verify your email before signing in." },
+    { pattern: /user already registered/i, message: "An account with this email already exists." },
+    { pattern: /email.*already.*(registered|exists|in use|used)/i, message: "This email is already in use. Please use a different one." },
+    { pattern: /duplicate key value violates unique constraint.*users_email_key/i, message: "This email is already in use. Please use a different one." },
+    { pattern: /invalid email/i, message: "Please enter a valid email address." },
+    { pattern: /password.*too short/i, message: "Password must be at least 8 characters." },
+    { pattern: /password.*too weak/i, message: "Please choose a stronger password." },
+    { pattern: /rate limit/i, message: "Too many attempts. Please wait a moment and try again." },
+    { pattern: /email rate limit/i, message: "Too many emails sent. Please wait before requesting another." },
+    { pattern: /same as/i, message: "New password must be different from your current password." },
+    { pattern: /session.*expired/i, message: "Your session has expired. Please log in again." },
+    { pattern: /invalid.*token/i, message: "This link has expired. Please request a new one." },
+    { pattern: /otp.*expired/i, message: "This code has expired. Please request a new one." },
+    { pattern: /signups.*disabled/i, message: "Sign ups are currently disabled. Please try again later." },
+    { pattern: /user not found/i, message: "No account found with this email." },
+    { pattern: /provider.*disabled/i, message: "This sign-in method is currently unavailable." },
+    { pattern: /manual.*link/i, message: "Saving accounts is temporarily unavailable. Please try again later." },
+    { pattern: /identity.*link/i, message: "Saving accounts is temporarily unavailable. Please try again later." },
+];
 
 const PAIRING_ERROR_MAPPINGS: ErrorMapping[] = [
     { pattern: /invalid.*invite.*code/i, message: "This invite code is invalid. Please check and try again." },

apps/mobile/src/lib/guestAccountWarningSeen.ts

@@ -0,0 +1,47 @@
+import * as SecureStore from "expo-secure-store";
+import { Platform } from "react-native";
+
+const STORAGE_KEY = "guest_account_recovery_warning_seen";
+
+async function getStorage(): Promise<boolean> {
+    try {
+        let data: string | null = null;
+
+        if (Platform.OS === "web") {
+            if (typeof window !== "undefined" && typeof window.localStorage !== "undefined") {
+                data = window.localStorage.getItem(STORAGE_KEY);
+            }
+        } else {
+            data = await SecureStore.getItemAsync(STORAGE_KEY);
+        }
+
+        return data === "true";
+    } catch (error) {
+        console.error("Error reading guest warning state:", error);
+    }
+    return false;
+}
+
+async function setStorage(seen: boolean): Promise<void> {
+    try {
+        const data = seen ? "true" : "false";
+
+        if (Platform.OS === "web") {
+            if (typeof window !== "undefined" && typeof window.localStorage !== "undefined") {
+                window.localStorage.setItem(STORAGE_KEY, data);
+            }
+        } else {
+            await SecureStore.setItemAsync(STORAGE_KEY, data);
+        }
+    } catch (error) {
+        console.error("Error saving guest warning state:", error);
+    }
+}
+
+export async function hasSeenGuestAccountWarning(): Promise<boolean> {
+    return getStorage();
+}
+
+export async function markGuestAccountWarningSeen(): Promise<void> {
+    await setStorage(true);
+}