Add dictionary feature with term management and UI components

- Implement backend API for term CRUD operations
- Add frontend dictionary page with search and filtering
- Integrate shadcn/ui components (Dialog)
- Create term management UI with add/edit/delete functionality
- Update database seed with initial terms
- Add API client for term operations
- Complete Phase 2 of development plan

packages/backend/prisma/seed.ts

@@ -44,7 +44,110 @@ async function main() {
   console.log('   Email: demo@znakovni.hr');
   console.log('   Password: demo123');
 
-  // Add sample terms here in future phases
+  // Create sample terms
+  console.log('🌱 Creating sample terms...');
+
+  const sampleTerms = [
+    {
+      wordText: 'Dobar dan',
+      normalizedText: 'dobar dan',
+      wordType: 'PHRASE',
+      cefrLevel: 'A1',
+      shortDescription: 'Pozdrav koji se koristi tijekom dana',
+      tags: JSON.stringify(['pozdrav', 'osnovno']),
+    },
+    {
+      wordText: 'Hvala',
+      normalizedText: 'hvala',
+      wordType: 'INTERJECTION',
+      cefrLevel: 'A1',
+      shortDescription: 'Izraz zahvalnosti',
+      tags: JSON.stringify(['zahvala', 'osnovno']),
+    },
+    {
+      wordText: 'Molim',
+      normalizedText: 'molim',
+      wordType: 'INTERJECTION',
+      cefrLevel: 'A1',
+      shortDescription: 'Izraz ljubaznosti pri traženju nečega',
+      tags: JSON.stringify(['ljubaznost', 'osnovno']),
+    },
+    {
+      wordText: 'Kuća',
+      normalizedText: 'kuca',
+      wordType: 'NOUN',
+      cefrLevel: 'A1',
+      shortDescription: 'Zgrada u kojoj ljudi žive',
+      tags: JSON.stringify(['dom', 'zgrada']),
+    },
+    {
+      wordText: 'Škola',
+      normalizedText: 'skola',
+      wordType: 'NOUN',
+      cefrLevel: 'A1',
+      shortDescription: 'Ustanova za obrazovanje',
+      tags: JSON.stringify(['obrazovanje', 'ustanova']),
+    },
+    {
+      wordText: 'Učiti',
+      normalizedText: 'uciti',
+      wordType: 'VERB',
+      cefrLevel: 'A1',
+      shortDescription: 'Stjecati znanje ili vještine',
+      tags: JSON.stringify(['obrazovanje', 'aktivnost']),
+    },
+    {
+      wordText: 'Jesti',
+      normalizedText: 'jesti',
+      wordType: 'VERB',
+      cefrLevel: 'A1',
+      shortDescription: 'Uzimati hranu',
+      tags: JSON.stringify(['hrana', 'aktivnost']),
+    },
+    {
+      wordText: 'Piti',
+      normalizedText: 'piti',
+      wordType: 'VERB',
+      cefrLevel: 'A1',
+      shortDescription: 'Uzimati tekućinu',
+      tags: JSON.stringify(['piće', 'aktivnost']),
+    },
+    {
+      wordText: 'Voda',
+      normalizedText: 'voda',
+      wordType: 'NOUN',
+      cefrLevel: 'A1',
+      shortDescription: 'Bezbojna tekućina neophodna za život',
+      tags: JSON.stringify(['piće', 'osnovno']),
+    },
+    {
+      wordText: 'Lijep',
+      normalizedText: 'lijep',
+      wordType: 'ADJECTIVE',
+      cefrLevel: 'A1',
+      shortDescription: 'Privlačan, ugodan za gledanje',
+      tags: JSON.stringify(['opis', 'pozitivno']),
+    },
+  ];
+
+  for (const termData of sampleTerms) {
+    // Check if term already exists
+    const existing = await prisma.term.findFirst({
+      where: {
+        normalizedText: termData.normalizedText,
+      },
+    });
+
+    if (!existing) {
+      const term = await prisma.term.create({
+        data: termData,
+      });
+      console.log(`  ✅ Created term: ${term.wordText}`);
+    } else {
+      console.log(`  ⏭️  Term already exists: ${termData.wordText}`);
+    }
+  }
+
   console.log('✅ Seed completed successfully!');
 }