feat(ai): 50er-Pool Magie-Phrasen fuer Foto-description

tests/unit/description-phrases.test.ts

@@ -0,0 +1,26 @@
+import { describe, it, expect } from 'vitest';
+import { DESCRIPTION_PHRASES, pickRandomPhrase } from '../../src/lib/server/ai/description-phrases';
+
+describe('description-phrases', () => {
+  it('contains exactly 50 entries', () => {
+    expect(DESCRIPTION_PHRASES).toHaveLength(50);
+  });
+
+  it('has no empty or whitespace-only entries', () => {
+    for (const phrase of DESCRIPTION_PHRASES) {
+      expect(phrase.trim().length).toBeGreaterThan(0);
+    }
+  });
+
+  it('has no duplicates', () => {
+    const set = new Set(DESCRIPTION_PHRASES);
+    expect(set.size).toBe(DESCRIPTION_PHRASES.length);
+  });
+
+  it('pickRandomPhrase returns a member of the pool', () => {
+    const pool = new Set(DESCRIPTION_PHRASES);
+    for (let i = 0; i < 100; i++) {
+      expect(pool.has(pickRandomPhrase())).toBe(true);
+    }
+  });
+});