feat: cookie banner compliance hardening — 5 legal requirements

1. Impressum link mandatory in banner (§5 TMG)
2. Pre-ticked prevention: only "required" categories pre-enabled (Planet49)
3. Cookie-Settings reopen link (§7(3) DSGVO — revocation as easy as consent)
4. Script-Blocking: data-cookie-category + type="text/plain" pattern
   Scripts only execute AFTER user consents to that category
5. Buttons already equal size (flex:1) — verified correct

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

admin-compliance/lib/sdk/einwilligungen/generator/cookie-banner-embed.ts

@@ -245,13 +245,16 @@ function generateHTML(config: CookieBannerConfig, privacyPolicyUrl: string): str
   const categoriesHTML = config.categories
     .map((cat) => {
       const isRequired = cat.isRequired
+      // COMPLIANCE: Only "required" categories may be pre-enabled (EuGH Planet49)
+      // Non-required categories must NEVER be defaultEnabled
+      const isEnabled = isRequired ? true : false
       return `
       <div class="cookie-banner-category" data-category="${cat.id}">
         <div class="cookie-banner-category-info">
           <div class="cookie-banner-category-name">${cat.name.de}</div>
           <div class="cookie-banner-category-desc">${cat.description.de}</div>
         </div>
-        <div class="cookie-banner-toggle ${cat.defaultEnabled ? 'active' : ''} ${isRequired ? 'disabled' : ''}"
+        <div class="cookie-banner-toggle ${isEnabled ? 'active' : ''} ${isRequired ? 'disabled' : ''}"
              data-category="${cat.id}"
              data-required="${isRequired}"></div>
       </div>
@@ -286,10 +289,22 @@ function generateHTML(config: CookieBannerConfig, privacyPolicyUrl: string): str
     </div>
   </div>
 
-  <a href="${privacyPolicyUrl}" class="cookie-banner-link" target="_blank">
-    ${config.texts.privacyPolicyLink.de}
-  </a>
+  <div class="cookie-banner-links">
+    <a href="${privacyPolicyUrl}" class="cookie-banner-link" target="_blank">
+      ${config.texts.privacyPolicyLink.de}
+    </a>
+    <a href="${config.impressumUrl || '/impressum'}" class="cookie-banner-link" target="_blank">
+      Impressum
+    </a>
+  </div>
 </div>
+
+<!-- Cookie Settings Re-Open (§7(3) DSGVO — Widerruf so einfach wie Einwilligung) -->
+<a href="#" id="cookieBannerReopen" class="cookie-settings-footer-link"
+   onclick="document.getElementById('cookieBanner').style.display='block';document.getElementById('cookieBannerOverlay').classList.add('active');return false;"
+   style="position:fixed;bottom:8px;left:8px;z-index:9990;font-size:11px;color:#6b7280;text-decoration:none;background:rgba(255,255,255,0.9);padding:4px 8px;border-radius:4px;border:1px solid #e5e7eb;">
+  Cookie-Einstellungen
+</a>
 `.trim()
 }
 
@@ -397,6 +412,31 @@ function generateJS(config: CookieBannerConfig): string {
     overlay?.classList.remove('active');
   }
 
+  // Script-Blocking: activate scripts with data-cookie-category ONLY after consent
+  function activateConsentedScripts() {
+    const consent = getConsent();
+    if (!consent) return;
+
+    // Find all blocked scripts (type="text/plain" with data-cookie-category)
+    document.querySelectorAll('script[data-cookie-category][type="text/plain"]').forEach(script => {
+      const category = script.getAttribute('data-cookie-category');
+      if (consent[category] === true) {
+        // Replace type to activate the script
+        const newScript = document.createElement('script');
+        if (script.src) newScript.src = script.src;
+        else newScript.textContent = script.textContent;
+        newScript.type = 'text/javascript';
+        script.parentNode.replaceChild(newScript, script);
+      }
+    });
+
+    // Also fire custom event for programmatic listeners
+    window.dispatchEvent(new CustomEvent('cookieConsentActivated', { detail: consent }));
+  }
+
+  // Run script activation after consent is saved
+  window.addEventListener('cookieConsentUpdated', activateConsentedScripts);
+
   window.CookieConsent = {
     getConsent,
     saveConsent,
@@ -405,14 +445,32 @@ function generateJS(config: CookieBannerConfig): string {
       document.getElementById('cookieBanner')?.classList.add('active');
       document.getElementById('cookieBannerOverlay')?.classList.add('active');
     },
-    hide: closeBanner
+    hide: closeBanner,
+    activateScripts: activateConsentedScripts,
   };
 
   if (document.readyState === 'loading') {
-    document.addEventListener('DOMContentLoaded', initBanner);
+    document.addEventListener('DOMContentLoaded', () => {
+      initBanner();
+      activateConsentedScripts();
+    });
   } else {
     initBanner();
+    activateConsentedScripts();
   }
 })();
+
+/*
+ * USAGE: Script-Blocking
+ *
+ * Instead of:
+ *   <script src="https://www.googletagmanager.com/gtag/js?id=G-XXXXXX"></script>
+ *
+ * Use:
+ *   <script type="text/plain" data-cookie-category="statistics"
+ *           src="https://www.googletagmanager.com/gtag/js?id=G-XXXXXX"></script>
+ *
+ * The script will only execute AFTER the user consents to "statistics".
+ */
 `.trim()
 }