R2 accounts in decePub: forgotten password, email by code, sessions, the theme kept with the login

Completion program R2, with PrivaPub's routes of the same release.

- Pages/PasswordRecovery.razor (/password-recovery): asks for a login or an address and shows the server's one
  sentence; with ?rc= it takes the code out of the address bar at once, checks it and sets a new password. Login links
  there ("Forgot your password?").
- Settings, the login: its email address with a verified badge, changed with the password and the code emailed to it
  (DOtp), removed with the password; "Sign out everywhere" (every device and persona, asked first).
- A password change takes the new JWT PrivaPub answers and exchanges the persona's token again, since every persona
  token ended with it.
- The theme kept with the login (PageSettings.SyncWithLogin, Settings > General): taken at sign-in and start-up once a
  client saved it, saved 1.5 s after a change here, never posted back when nothing changed, never the language.
- Login, Setup and Join start the session through CascadingState.SignedIn, which takes the login's theme.
- 38 keys in both resx files; CLAUDE.md follows.

Verified: dotnet build decePubClient.csproj -c Release (0 errors, no new warnings).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WpVCoDeM1qUTRp4fXQdfof

Models/APIs.cs

@@ -19,6 +19,16 @@ public static class APIs
 		public const string GET_Logout = "clientapi/user/logout";
 		public const string GET_SniffAgain = "clientapi/user/sniff/again";
 		public const string POST_UpdatePassword = "clientapi/user/update/password";
+		public const string POST_LogoutEverywhere = "clientapi/user/logout/everywhere";
+		public const string POST_RecoverPassword = "clientapi/user/recover/password";
+		public const string POST_RecoverValid = "clientapi/user/recover/valid";
+		public const string POST_RecoverUpdatePassword = "clientapi/user/recover/update/password";
+		public const string GET_Account = "clientapi/user/account";
+		public const string POST_Email = "clientapi/user/email";
+		public const string POST_EmailVerify = "clientapi/user/email/verify";
+		public const string POST_EmailRemove = "clientapi/user/email/remove";
+		public const string GET_UserSettings = "clientapi/user/settings";
+		public const string POST_UpdateUserSettings = "clientapi/user/update/settings";
 		public const string POST_DeleteAccount = "clientapi/user/delete";
 		public const string GET_Personas = "clientapi/avatar/private/list";
 		public const string POST_InsertPersona = "clientapi/avatar/private/insert";

Models/PageSettings.cs

@@ -1,5 +1,6 @@
 
 using PrivaPub.ClientModels.Resources;
+using PrivaPub.ClientModels.User;
 
 using System.ComponentModel.DataAnnotations;
 
@@ -21,6 +22,8 @@ namespace decePubClient.Models
 		public bool ThemeIsDarkGray { get; set; } = false;
 		// before publishing pictures without a description, the composer asks once
 		public bool RemindAltText { get; set; } = true;
+		// the theme is the login's (PrivaPub's user settings): taken at sign-in, saved there whenever it changes here
+		public bool SyncWithLogin { get; set; } = true;
 
 		// How the theme flags combine is in wwwroot/js/theme.js: with PreferSystemTheming the OS picks light or dark;
 		// otherwise ThemeIsDarkGray, then ThemeIsLightGray, then ThemeIsDarkMode decide; either grey flag drops the
@@ -56,5 +59,33 @@ namespace decePubClient.Models
 				LightThemeIndexColour = hue;
 			SetGray(false, isDark);
 		}
+
+		/// <summary>
+		/// These settings as the login keeps them: the language as the two letters of the culture the app runs in
+		/// (ExtensionMethods.ToCulture: "it" is it-IT, anything else en-GB), the icons' hue at its default, since the client
+		/// has no such setting.
+		/// </summary>
+		public ViewUserSettings ToLoginSettings() => new()
+		{
+			LanguageCode = CurrentLanguageCode is "it" ? "it" : "en",
+			LightThemeIndexColour = LightThemeIndexColour,
+			DarkThemeIndexColour = DarkThemeIndexColour,
+			IconsThemeIndexColour = DefaultLightThemeIndexColour,
+			PreferSystemTheming = PreferSystemTheming,
+			ThemeIsDarkMode = ThemeIsDarkMode,
+			ThemeIsLightGray = ThemeIsLightGray,
+			ThemeIsDarkGray = ThemeIsDarkGray
+		};
+
+		/// <summary>Takes the login's theme; its language stays this device's, since changing it reloads the app.</summary>
+		public void TakeLoginTheme(ViewUserSettings settings)
+		{
+			LightThemeIndexColour = Math.Clamp(settings.LightThemeIndexColour, (short)0, (short)359);
+			DarkThemeIndexColour = Math.Clamp(settings.DarkThemeIndexColour, (short)0, (short)359);
+			PreferSystemTheming = settings.PreferSystemTheming;
+			ThemeIsDarkMode = settings.ThemeIsDarkMode;
+			ThemeIsLightGray = settings.ThemeIsLightGray;
+			ThemeIsDarkGray = settings.ThemeIsDarkGray;
+		}
 	}
 }