PlexPlaylist_UI subtree merge

feat: Implement user authentication and login screen

Merge commit 'a14210c458d5f6c6a4875ca8228db63c0b73cf75'

sample-front-end/locales/en.ts

@@ -1,4 +1,6 @@
 
+
+
 export const en = {
   app: {
     // title and manager are no longer used for branding
@@ -6,6 +8,17 @@ export const en = {
     manager: 'Manager',
     footer: '© {year} PMS Playlist Sync. Connected to Docker backend.',
   },
+  auth: {
+    title: 'Login',
+    subtitle: 'Sign in to manage your playlist syncs',
+    username: 'Username',
+    password: 'Password',
+    loginBtn: 'Sign In',
+    logout: 'Logout',
+    loggingIn: 'Verifying...',
+    invalidCredentials: 'Invalid username or password',
+    welcome: 'Welcome, {user}',
+  },
   common: {
     save: 'Save',
     cancel: 'Cancel',
@@ -143,5 +156,7 @@ export const en = {
     librarySwitched: 'Library switched to {library}',
     connectedTo: 'Successfully connected to {name}',
     connectionCancelled: 'Connection cancelled by user.',
+    loginFailed: 'Login failed. Please check credentials.',
+    loggedOut: 'Successfully logged out.',
   }
-};
+};

sample-front-end/locales/es.ts

@@ -1,4 +1,6 @@
 
+
+
 export const es = {
   app: {
     // title and manager are no longer used for branding
@@ -6,6 +8,17 @@ export const es = {
     manager: 'Gestor',
     footer: '© {year} PMS Playlist Sync. Conectado al backend Docker.',
   },
+  auth: {
+    title: 'Iniciar Sesión',
+    subtitle: 'Ingrese para gestionar sus sincronizaciones',
+    username: 'Usuario',
+    password: 'Password',
+    loginBtn: 'Entrar',
+    logout: 'Salir',
+    loggingIn: 'Verificando...',
+    invalidCredentials: 'Usuario o contraseña incorrectos',
+    welcome: 'Bienvenido, {user}',
+  },
   common: {
     save: 'Guardar',
     cancel: 'Cancelar',
@@ -143,5 +156,7 @@ export const es = {
     librarySwitched: 'Librería cambiada a {library}',
     connectedTo: 'Conectado exitosamente a {name}',
     connectionCancelled: 'Conexión cancelada por usuario.',
+    loginFailed: 'Fallo de inicio de sesión. Verifique credenciales.',
+    loggedOut: 'Sesión cerrada exitosamente.',
   }
-};
+};