content: repair visitor-facing copy and briefing accessibility

Public pages no longer describe their own pipeline, case and service
labels are real accessible names, and the contact briefing writes
localized fields without empty optional lines.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/core/content/shell-copy.ts

@@ -10,8 +10,6 @@ export interface ShellCopy {
   readonly otherLocaleName: string;
   readonly cvLabel: string;
   readonly contactCta: string;
-  readonly legalReviewNotice: string;
-  readonly notFoundHomeLabel: string;
 }
 
 export const SHELL_COPY: Record<AppLocale, ShellCopy> = {
@@ -25,9 +23,6 @@ export const SHELL_COPY: Record<AppLocale, ShellCopy> = {
     otherLocaleName: 'English',
     cvLabel: 'Lebenslauf als PDF',
     contactCta: 'Kontakt',
-    legalReviewNotice:
-      'Dieser Rechtstext ist ungeprüft und muss vor der Veröffentlichung vom Seitenbetreiber geprüft werden.',
-    notFoundHomeLabel: 'Zur Startseite',
   },
   en: {
     skipLink: 'Skip to content',
@@ -39,8 +34,5 @@ export const SHELL_COPY: Record<AppLocale, ShellCopy> = {
     otherLocaleName: 'Deutsch',
     cvLabel: 'Curriculum vitae as PDF',
     contactCta: 'Contact',
-    legalReviewNotice:
-      'This legal text is unreviewed and must be checked by the site owner before publication.',
-    notFoundHomeLabel: 'Back to home',
   },
 };