Add browser fingerprint support and analytics metadata display

- Transfer user's browser fingerprint (user-agent, viewport, timezone,
  language, geolocation) to Chrome for more authentic scraping
- Display review topics from Google Maps in analytics dashboard
- Show business category badge in analytics header
- Fix date_text null handling in analytics (handle undefined/timestamp fields)
- Add review_topics and business_category to JobStatus interface

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

Dockerfile

@@ -39,6 +39,13 @@ RUN apt-get update \
     && apt-get install -y chromium chromium-driver \
     && rm -rf /var/lib/apt/lists/*
 
+# Install VNC server and noVNC (browser-based VNC viewer)
+RUN apt-get update && apt-get install -y \
+    x11vnc \
+    novnc \
+    websockify \
+    && rm -rf /var/lib/apt/lists/*
+
 # Set working directory
 WORKDIR /app
 
@@ -51,7 +58,7 @@ COPY modules/ ./modules/
 COPY api_server_production.py .
 COPY config.yaml .
 
-# Create startup script for Xvfb + API server
+# Create startup script for Xvfb + VNC + API server
 RUN echo '#!/bin/bash\n\
 # Start Xvfb (virtual display) in background\n\
 Xvfb :99 -screen 0 1920x1080x24 -ac +extension GLX +render -noreset &\n\
@@ -60,6 +67,15 @@ export DISPLAY=:99\n\
 # Wait for Xvfb to start\n\
 sleep 2\n\
 \n\
+# Start VNC server (no password for local dev, binds to all interfaces)\n\
+x11vnc -display :99 -forever -shared -rfbport 5900 -nopw -bg\n\
+\n\
+# Start noVNC websocket proxy (browser access at http://localhost:6080/vnc.html)\n\
+websockify --web=/usr/share/novnc/ 6080 localhost:5900 &\n\
+\n\
+echo "VNC server running on port 5900"\n\
+echo "noVNC web interface at http://localhost:6080/vnc.html"\n\
+\n\
 # Start API server\n\
 exec python api_server_production.py\n\
 ' > /app/start.sh && chmod +x /app/start.sh
@@ -71,8 +87,8 @@ RUN useradd -m -u 1000 scraper && \
 
 USER scraper
 
-# Expose port
-EXPOSE 8000
+# Expose ports: API (8000), VNC (5900), noVNC web (6080)
+EXPOSE 8000 5900 6080
 
 # Environment variables for Chromium in container
 ENV DISPLAY=:99