feat: Add anchor link sharing for ads with scroll offset

- Add generateAdId() function to create unique hashes from ad names and categories
- Implement handleCopyLink() to copy shareable links with anchor fragments
- Add scroll-to-anchor functionality with 20px offset to avoid navigation overlap
- Add visual highlight animation when navigating to shared links
- Import message component for user feedback on successful copy operations

Each ad now gets a unique ID and share button that copies a direct link.
Shared links automatically scroll to the target ad with proper offset.

frontend/src/components/FilePreview.js

@@ -155,7 +155,7 @@ export default function FilePreview({ file, zoom = 1, darkMode = false }) {
   };
 
   return (
-    <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'flex-start', marginBottom: 16, marginTop: 16 }}>
+    <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'flex-start', marginBottom: 16, marginTop: 8 }}>
       {renderFileContent()}
       {/* Badge für jede einzelne Datei */}
       {(file.width || file.height || file.size || file.duration) && (

frontend/src/pages/ProjectDetail.js

@@ -1,7 +1,7 @@
 import React, { useEffect, useState } from 'react';
 import { useParams, useNavigate } from 'react-router-dom';
-import { Tabs, Button, Spin, Skeleton, Result, Grid, Select, Layout } from 'antd';
+import { Tabs, Button, Spin, Skeleton, Result, Grid, Select, Layout, Tooltip, message } from 'antd';
-import { ArrowLeftOutlined, LoadingOutlined, LockOutlined, MinusOutlined, PlusOutlined, EllipsisOutlined } from '@ant-design/icons';
+import { ArrowLeftOutlined, LoadingOutlined, LockOutlined, MinusOutlined, PlusOutlined, EllipsisOutlined, ShareAltOutlined } from '@ant-design/icons';
 import UserMenu from '../components/UserMenu';
 import FilePreview, { formatFileSize, formatDuration } from '../components/FilePreview';
 import debugLogger from '../utils/debugLogger';
@@ -9,6 +9,18 @@ import debugLogger from '../utils/debugLogger';
 const backendUrl = process.env.REACT_APP_BACKEND || '';
 const { useBreakpoint } = Grid;
 
+// Hash-Funktion für Ad-IDs
+function generateAdId(adName, subcategoryName, categoryName) {
+  const combined = `${categoryName}-${subcategoryName}-${adName}`;
+  let hash = 0;
+  for (let i = 0; i < combined.length; i++) {
+    const char = combined.charCodeAt(i);
+    hash = ((hash << 5) - hash) + char;
+    hash = hash & hash; // 32-bit integer
+  }
+  return Math.abs(hash).toString(36); // Base36 für kürzere IDs
+}
+
 function ProjectDetail({ user, darkMode, onLogout, onToggleDarkMode, overrideParams, ...props }) {
   // URL-Parameter holen, mit Override-Support für Smart Resolution
   const routeParams = useParams();
@@ -51,6 +63,28 @@ function ProjectDetail({ user, darkMode, onLogout, onToggleDarkMode, overridePar
     });
   }
 
+  // Link kopieren Funktionalität
+  const handleCopyLink = async (adId, adName) => {
+    try {
+      // Entferne bestehende Sprungmarke aus der URL
+      const currentUrl = window.location.href;
+      const baseUrl = currentUrl.split('#')[0]; // Alles vor dem ersten #
+      const linkWithAnchor = `${baseUrl}#${adId}`;
+      await navigator.clipboard.writeText(linkWithAnchor);
+      message.success(`Link zu "${adName}" wurde kopiert!`);
+    } catch (err) {
+      // Fallback für ältere Browser
+      const textArea = document.createElement('textarea');
+      const baseUrl = window.location.href.split('#')[0];
+      textArea.value = `${baseUrl}#${adId}`;
+      document.body.appendChild(textArea);
+      textArea.select();
+      document.execCommand('copy');
+      document.body.removeChild(textArea);
+      message.success(`Link zu "${adName}" wurde kopiert!`);
+    }
+  };
+
   useEffect(() => {
     async function fetchLogo() {
       if (!client || !project) {
@@ -105,9 +139,21 @@ function ProjectDetail({ user, darkMode, onLogout, onToggleDarkMode, overridePar
                 <h2 style={{ marginBottom: 4 }}>{sub.name}</h2>
                 {/* Ads unterhalb der Subcategory anzeigen */}
                 {Array.isArray(sub.children) && sub.children.filter(ad => ad.type === 'ad').length > 0 ? (
-                  sub.children.filter(ad => ad.type === 'ad').map(ad => (
+                  sub.children.filter(ad => ad.type === 'ad').map(ad => {
-                    <div key={ad.name} style={{ marginLeft: 0, marginBottom: 16 }}>
+                    const adId = generateAdId(ad.name, sub.name, cat.title);
-                      <div style={{ color: '#555', fontSize: 15, display: 'flex', alignItems: 'center', gap: 8 }}>{ad.name}</div>
+                    return (
+                      <div key={ad.name} id={adId} style={{ marginLeft: 0, marginBottom: 16 }}>
+                        <div style={{ color: '#555', fontSize: 15, display: 'flex', alignItems: 'center', gap: 8 }}>
+                          {ad.name}
+                          <Tooltip title="Link kopieren">
+                            <Button 
+                              type="text" 
+                              shape="circle" 
+                              icon={<ShareAltOutlined />} 
+                              onClick={() => handleCopyLink(adId, ad.name)}
+                            />
+                          </Tooltip>
+                        </div>
                       {/* Dateien unterhalb des Ads anzeigen */}
                       {Array.isArray(ad.files) && ad.files.length > 0 ? (
                         <div style={{ marginLeft: 0, display: 'flex', flexWrap: 'wrap', gap: 32 }}>
@@ -119,7 +165,8 @@ function ProjectDetail({ user, darkMode, onLogout, onToggleDarkMode, overridePar
                         <div style={{ color: '#bbb', marginLeft: 16, fontSize: 13 }}>Keine Dateien vorhanden.</div>
                       )}
                     </div>
-                  ))
+                    );
+                  })
                 ) : (
                   <div style={{ color: '#aaa', marginLeft: 16, fontSize: 14 }}>Keine Ads vorhanden.</div>
                 )}
@@ -232,6 +279,32 @@ function ProjectDetail({ user, darkMode, onLogout, onToggleDarkMode, overridePar
     fetchTabs();
   }, [user, client, project, tab]);
 
+  // Scroll zu Sprungmarke nach dem Laden
+  useEffect(() => {
+    if (!loading && tabs.length > 0) {
+      const hash = window.location.hash.substring(1);
+      if (hash) {
+        // Kurz warten bis die Inhalte gerendert sind
+        setTimeout(() => {
+          const element = document.getElementById(hash);
+          if (element) {
+            // Scroll mit Offset, um Navigation zu berücksichtigen
+            const elementTop = element.offsetTop - 20;
+            window.scrollTo({
+              top: elementTop,
+              behavior: 'smooth'
+            });
+            // Kurz hervorheben
+            element.style.backgroundColor = '#edff5f';
+            setTimeout(() => {
+              element.style.backgroundColor = '';
+            }, 2000);
+          }
+        }, 300);
+      }
+    }
+  }, [loading, tabs, activeKey]);
+
   // Tab-Wechsel: Schreibe Tab in die URL
   const handleTabChange = (key) => {
     setActiveKey(key);