build: try fix ci

backend/Dockerfile

@@ -9,16 +9,12 @@ RUN apt-get update && apt-get install -y \
     curl \
     && rm -rf /var/lib/apt/lists/*
 
-# Install uv for faster package management
-COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
-
 # Copy requirements and install dependencies with uv
-COPY requirements.txt .
-RUN uv pip install --system --no-cache -r requirements.txt
+COPY backend/requirements.txt .
+RUN pip install --no-cache -r requirements.txt
 
 # Copy application code
-COPY app/ ./app/
-COPY migrate_to_unified_hosts.py ./
+COPY backend/app/ ./app/
 
 # Create data directory for SQLite
 RUN mkdir -p /app/data
@@ -26,4 +22,4 @@ RUN mkdir -p /app/data
 EXPOSE 8000
 
 # Production server without auto-reload  
-CMD ["uv", "run", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "4"]
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "4"]