Add Znakopis feature with document and sentence management

- Implemented Znakopis page with document and sentence CRUD operations
- Added backend routes for documents and sentences
- Created UI components for sentence editing and display
- Added sentence store for state management
- Integrated select component for document selection
- Updated README with Phase 3 completion status
- Removed obsolete fix-colors.md file

packages/frontend/src/pages/Dictionary.tsx

@@ -5,8 +5,14 @@ import { WordGrid } from '../components/dictionary/WordGrid';
 import { WordDetailModal } from '../components/dictionary/WordDetailModal';
 import { Term, TermFilters } from '../types/term';
 import { fetchTerms } from '../lib/termApi';
+import { useSentenceStore } from '../stores/sentenceStore';
+import { useNavigate } from 'react-router-dom';
+import { toast } from 'sonner';
 
 function Dictionary() {
+  const navigate = useNavigate();
+  const addToken = useSentenceStore((state) => state.addToken);
+
   const [terms, setTerms] = useState<Term[]>([]);
   const [loading, setLoading] = useState(true);
   const [selectedTerm, setSelectedTerm] = useState<Term | null>(null);
@@ -54,9 +60,14 @@ function Dictionary() {
   };
 
   const handleAddToSentence = (term: Term) => {
-    // TODO: Implement in Phase 3 (Znakopis)
-    console.log('Add to sentence:', term);
-    alert(`Dodavanje riječi "${term.wordText}" u rečenicu će biti implementirano u fazi 3.`);
+    addToken(term);
+    toast.success(`Dodano: "${term.wordText}"`, {
+      description: 'Riječ je dodana u rečenicu. Idite na Znakopis za uređivanje.',
+      action: {
+        label: 'Idi na Znakopis',
+        onClick: () => navigate('/znakopis'),
+      },
+    });
   };
 
   return (