feat: establish GeoIntel and ITWorx branding

frontend/src/components/auth/LandingPage.test.tsx

@@ -27,6 +27,7 @@ describe('LandingPage', () => {
     render(<LandingPage onAuthenticated={onAuthenticated} />)
 
     expect(screen.getByRole('heading', { name: /Operationele GIS-analyse/i })).toBeTruthy()
+    expect(screen.getByRole('img', { name: 'ITWorx.tech' })).toBeTruthy()
     fireEvent.change(screen.getByLabelText('Gebruikersnaam'), { target: { value: 'operator' } })
     fireEvent.change(screen.getByLabelText('Wachtwoord'), { target: { value: 'correct' } })
     fireEvent.click(screen.getAllByRole('button', { name: 'Inloggen' })[1])

frontend/src/components/auth/LandingPage.tsx

@@ -16,6 +16,8 @@ import { login } from '../../services/api/auth'
 import type { AuthSession } from '../../services/api/auth'
 import { formatError } from '../../lib/formatError'
 import '../../styles/landing.css'
+import { GeoIntelMark } from '../brand/GeoIntelBrand'
+import { ItWorxSignature } from '../brand/ItWorxSignature'
 
 interface LandingPageProps {
   onAuthenticated: (session: AuthSession) => void
@@ -86,7 +88,7 @@ export function LandingPage({ onAuthenticated, serviceError = null }: LandingPag
       <a className="landing-skip-link" href="#login-panel">Ga naar aanmelden</a>
       <header className="landing-header">
         <a className="landing-brand" href="#top" aria-label="GeoIntel Atlas startpagina">
-          <span className="landing-brand-mark" aria-hidden="true">GI</span>
+          <GeoIntelMark className="landing-brand-mark" />
           <span>GeoIntel Atlas</span>
         </a>
         <button
@@ -222,7 +224,10 @@ export function LandingPage({ onAuthenticated, serviceError = null }: LandingPag
 
       <footer className="landing-footer">
         <div><strong>GeoIntel Atlas Workbench</strong><p>Operationele GIS-analyse voor België en de Belgische Noordzee.</p></div>
-        <p>© {new Date().getFullYear()} GeoIntel · Interne operatoromgeving</p>
+        <div className="landing-footer-ownership">
+          <ItWorxSignature />
+          <p>© {new Date().getFullYear()} GeoIntel · Interne operatoromgeving</p>
+        </div>
       </footer>
     </div>
   )