Added registration and settings page

src/utils/validation.js

@@ -0,0 +1,44 @@
+import {z} from 'zod';
+
+// Error messages are i18n keys — translate them in components via t(error.message)
+
+const emailField = z
+    .string()
+    .min(1, 'VALIDATION.EMAIL_REQUIRED')
+    .email('VALIDATION.EMAIL_INVALID');
+
+const passwordField = z
+    .string()
+    .min(8, 'VALIDATION.PASSWORD_TOO_SHORT');
+
+const inviteCodeField = z
+    .string()
+    .min(1, 'VALIDATION.INVITE_CODE_REQUIRED');
+
+// Backend stores steamId as a primitive long; Steam IDs are positive 64-bit integers.
+const steamIdField = z
+    .union([z.string(), z.number()])
+    .transform((v) => (typeof v === 'string' ? v.trim() : String(v)))
+    .refine((v) => v.length > 0, {message: 'VALIDATION.STEAM_ID_REQUIRED'})
+    .refine((v) => /^\d+$/.test(v), {message: 'VALIDATION.STEAM_ID_INVALID'})
+    .transform((v) => Number(v))
+    .refine((n) => Number.isFinite(n) && n > 0, {message: 'VALIDATION.STEAM_ID_INVALID'});
+
+export const registrationSchema = z
+    .object({
+        email: emailField,
+        password: passwordField,
+        passwordConfirmation: z.string().min(1, 'VALIDATION.PASSWORD_CONFIRMATION_REQUIRED'),
+        inviteCode: inviteCodeField,
+        steamId: steamIdField,
+    })
+    .refine((d) => d.password === d.passwordConfirmation, {
+        path: ['passwordConfirmation'],
+        message: 'VALIDATION.PASSWORD_MISMATCH',
+    });
+
+export const settingsSchema = z.object({
+    useDarkTheme: z.boolean(),
+    language: z.enum(['en', 'de'], {message: 'VALIDATION.LANGUAGE_INVALID'}),
+    steamId: steamIdField,
+});