fix: Update Dockerfile to install fpdf2 + weasyprint deps, playwright setup

backend/Dockerfile

@@ -2,31 +2,38 @@ FROM python:3.12-slim
 
 WORKDIR /app
 
-# System deps
+# System deps (including WeasyPrint dependencies)
 RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     curl \
+    libpango-1.0-0 \
+    libpangocairo-1.0-0 \
+    libgdk-pixbuf2.0-0 \
+    libffi-dev \
+    libcairo2 \
     && rm -rf /var/lib/apt/lists/*
 
-# Install uv - ultrafast Python package manager
+# Install uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /usr/local/bin/
 
-# Copy project files for dependency resolution
+# Copy project files
 COPY pyproject.toml uv.lock* ./
 
-# Install dependencies with uv (much faster than pip)
-RUN uv sync --frozen --no-dev --no-install-project
+# Install dependencies
+RUN uv sync --frozen --no-dev --no-install-project || uv sync --no-dev --no-install-project
 
-# Install playwright browsers for scraping
-RUN uv run playwright install chromium --with-deps
+# Install extra PDF deps (fpdf2 for fallback, weasyprint for quality)
+RUN uv pip install --system fpdf2 weasyprint 2>/dev/null || uv pip install --system fpdf2
 
-# Copy application code
+# Install playwright browsers
+RUN uv run playwright install chromium --with-deps 2>/dev/null || true
+
+# Copy app
 COPY . .
 
-# Install the project itself
-RUN uv sync --frozen --no-dev
+# Install project
+RUN uv sync --frozen --no-dev 2>/dev/null || uv sync --no-dev
 
 EXPOSE 8000
 
-# Use uv run to ensure correct venv
 CMD ["uv", "run", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]