feat(zopk): Add AI model info banner to dashboard

Shows:
- Current model: gemini-2.5-flash-lite
- Prompt version: v2 (2026-01-15)
- New topics: +7 infrastructure projects

Tooltip lists: Via Pomerania, S6, Droga Czerwona, etc.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

templates/admin/zopk_dashboard.html

@@ -1025,6 +1025,21 @@
 <!-- Section 3: AI Evaluation filters -->
 <div class="stats-section">
     <h3 class="stats-section-title">Ocena AI (Gemini) <small>(kliknij aby wybrać)</small></h3>
+
+    <!-- AI Model Info Banner -->
+    <div class="ai-model-info" style="background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%); border: 1px solid #7dd3fc; border-radius: var(--radius); padding: var(--spacing-sm) var(--spacing-md); margin-bottom: var(--spacing-md); font-size: var(--font-size-sm);">
+        <div style="display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--spacing-xs);">
+            <div>
+                <strong>🤖 Model:</strong> <code style="background: #fff; padding: 2px 6px; border-radius: 4px;">gemini-2.5-flash-lite</code>
+            </div>
+            <div>
+                <strong>📅 Prompt v2:</strong> 2026-01-15
+            </div>
+            <div title="Via Pomerania, S6, Droga Czerwona, Pakt Bezpieczeństwa, NORDA, Deklaracja Bałtycka">
+                <strong>✅ Nowe tematy:</strong> +7 projektów infrastrukturalnych
+            </div>
+        </div>
+    </div>
     <div class="stats-grid" style="grid-template-columns: repeat(4, 1fr); max-width: 800px;">
         <a href="?status=ai_relevant" class="stat-card filter-card success {{ 'active' if status_filter == 'ai_relevant' else '' }}">
             <div class="stat-value">{{ stats.ai_relevant }}</div>