Fix Dockerfile: Add wget for HF Spaces build

HF Spaces automatically installs VS Code Server which requires wget.
Added wget to system dependencies to fix build error.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Dockerfile

@@ -8,6 +8,7 @@ WORKDIR /app
 RUN apt-get update && apt-get install -y \
     build-essential \
     curl \
+    wget \
     && rm -rf /var/lib/apt/lists/*
 
 # Copy requirements file