feat(profile): add username + preferred_locale; wire to Inertia + middleware

- DB: users.username (unique), users.preferred_locale (default from app.locale)
- Backend: validation, model fillable; share supportedLocales; SetLocaleFromUser
- Frontend: profile page fields + types
- Filament: SuperAdmin profile page with username/language

feat(admin-nav): move Tasks to Bibliothek and add menu labels

fix(tasks-table): show localized title/emotion/event type; add translated headers

feat(l10n): add missing table headers for emotions and event types; normalize en/de files

refactor: tidy translations for tasks/emotions/event types

resources/js/pages/settings/profile.tsx

@@ -22,7 +22,7 @@ const breadcrumbs: BreadcrumbItem[] = [
 ];
 
 export default function Profile({ mustVerifyEmail, status }: { mustVerifyEmail: boolean; status?: string }) {
-    const { auth } = usePage<SharedData>().props;
+    const { auth, supportedLocales } = usePage<SharedData>().props as SharedData & { supportedLocales: string[] };
 
     return (
         <AppLayout breadcrumbs={breadcrumbs}>
@@ -74,6 +74,40 @@ export default function Profile({ mustVerifyEmail, status }: { mustVerifyEmail:
                                     <InputError className="mt-2" message={errors.email} />
                                 </div>
 
+                                <div className="grid gap-2">
+                                    <Label htmlFor="username">Username</Label>
+
+                                    <Input
+                                        id="username"
+                                        className="mt-1 block w-full"
+                                        defaultValue={(auth.user as any).username ?? ''}
+                                        name="username"
+                                        autoComplete="username"
+                                        placeholder="Username"
+                                    />
+
+                                    <InputError className="mt-2" message={errors.username} />
+                                </div>
+
+                                <div className="grid gap-2">
+                                    <Label htmlFor="preferred_locale">Language</Label>
+
+                                    <select
+                                        id="preferred_locale"
+                                        name="preferred_locale"
+                                        defaultValue={(auth.user as any).preferred_locale ?? 'en'}
+                                        className="mt-1 block w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
+                                    >
+                                        {(supportedLocales ?? ['de', 'en']).map((l) => (
+                                            <option key={l} value={l}>
+                                                {l.toUpperCase()}
+                                            </option>
+                                        ))}
+                                    </select>
+
+                                    <InputError className="mt-2" message={errors.preferred_locale} />
+                                </div>
+
                                 {mustVerifyEmail && auth.user.email_verified_at === null && (
                                     <div>
                                         <p className="-mt-4 text-sm text-muted-foreground">

resources/js/types/index.d.ts

@@ -27,6 +27,7 @@ export interface SharedData {
     quote: { message: string; author: string };
     auth: Auth;
     sidebarOpen: boolean;
+    supportedLocales?: string[];
     [key: string]: unknown;
 }
 
@@ -34,6 +35,8 @@ export interface User {
     id: number;
     name: string;
     email: string;
+    username?: string;
+    preferred_locale?: string;
     avatar?: string;
     email_verified_at: string | null;
     created_at: string;