feat: Go backend, enhanced search, new widgets, Docker deploy

Major changes:
- Add Go backend (backend/) with microservices architecture
- Enhanced master-agents-svc: reranker, content-classifier, stealth-crawler,
  proxy-manager, media-search, fastClassifier, language detection
- New web-svc widgets: KnowledgeCard, ProductCard, ProfileCard, VideoCard,
  UnifiedCard, CardGallery, InlineImageGallery, SourcesPanel, RelatedQuestions
- Improved discover-svc with discover-db integration
- Docker deployment improvements (Caddyfile, vendor.sh, BUILD.md)
- Library-svc: project_id schema migration
- Remove deprecated finance-svc and travel-svc
- Localization improvements across services

Made-with: Cursor

test-chat.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+echo "Testing chat functionality on localhost:3000"
+echo "============================================="
+echo ""
+
+# Test 1: Check if webui is accessible
+echo "1. Checking if webui is accessible..."
+WEBUI_STATUS=$(curl -s -o /dev/null -w "%{http_code}" http://localhost:3000)
+if [ "$WEBUI_STATUS" = "200" ]; then
+    echo "✓ Webui is accessible (HTTP $WEBUI_STATUS)"
+else
+    echo "✗ Webui returned HTTP $WEBUI_STATUS"
+    exit 1
+fi
+echo ""
+
+# Test 2: Check API Gateway health
+echo "2. Checking API Gateway health..."
+API_HEALTH=$(curl -s http://localhost:3015/health 2>&1)
+echo "API Gateway response: $API_HEALTH"
+echo ""
+
+# Test 3: Try to send a chat message
+echo "3. Testing chat API endpoint..."
+CHAT_RESPONSE=$(curl -s -X POST http://localhost:3015/api/chat \
+  -H "Content-Type: application/json" \
+  -d '{"message": "Привет, как дела?", "chatId": "test-'$(date +%s)'"}' \
+  2>&1)
+
+echo "Chat API response:"
+echo "$CHAT_RESPONSE"
+echo ""
+
+# Test 4: Check chat-svc directly
+echo "4. Checking chat-svc health..."
+CHAT_HEALTH=$(curl -s http://localhost:3005/health 2>&1)
+echo "Chat service response: $CHAT_HEALTH"
+echo ""
+
+echo "============================================="
+echo "Test complete!"