Fix contrast issues with text-muted and bg-dark classes

- Fixed Bootstrap bg-dark class to use better contrasting color
- Added comprehensive text-muted contrast fixes for various contexts
- Improved dark theme colors for better accessibility
- Fixed CSS inheritance issues for code elements in dark contexts
- All color choices meet WCAG AA contrast requirements

Dockerfile

@@ -0,0 +1,114 @@
+# UnitForge Docker Image
+# Optimized for uv package manager and production deployment
+
+FROM python:3.11-slim as base
+
+# Set environment variables
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    curl \
+    git \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install uv
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
+
+# Create app user
+RUN groupadd --gid 1000 app && \
+    useradd --uid 1000 --gid app --shell /bin/bash --create-home app
+
+# Set work directory
+WORKDIR /app
+
+# Copy dependency files
+COPY --chown=app:app pyproject.toml .
+COPY --chown=app:app backend/requirements.txt backend/
+
+# Create virtual environment and install dependencies
+RUN uv venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+RUN uv pip install -r backend/requirements.txt
+
+# Development stage
+FROM base as development
+
+# Install development dependencies
+RUN uv pip install -e ".[dev,web]"
+
+# Copy source code
+COPY --chown=app:app . .
+
+# Make scripts executable
+RUN chmod +x unitforge-cli start-server.sh demo.sh
+
+USER app
+
+EXPOSE 8000
+
+CMD ["./start-server.sh", "--host", "0.0.0.0"]
+
+# Production stage
+FROM base as production
+
+# Install only production dependencies
+RUN uv pip install -e .
+
+# Copy source code
+COPY --chown=app:app backend/ backend/
+COPY --chown=app:app frontend/ frontend/
+COPY --chown=app:app unitforge-cli .
+COPY --chown=app:app start-server.sh .
+
+# Make scripts executable
+RUN chmod +x unitforge-cli start-server.sh
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:8000/health || exit 1
+
+USER app
+
+EXPOSE 8000
+
+# Use uvicorn directly (already installed via uv)
+CMD ["uvicorn", "backend.app.main:app", "--host", "0.0.0.0", "--port", "8000"]
+
+# Multi-stage build for CLI-only image
+FROM python:3.11-slim as cli-only
+
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1
+
+# Install uv
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
+
+# Create app user
+RUN groupadd --gid 1000 app && \
+    useradd --uid 1000 --gid app --shell /bin/bash --create-home app
+
+WORKDIR /app
+
+# Copy dependency files
+COPY --chown=app:app pyproject.toml .
+
+# Create virtual environment and install minimal CLI dependencies
+RUN uv venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+RUN uv pip install click pydantic pyyaml validators
+
+# Copy CLI source code only
+COPY --chown=app:app backend/app/core/ backend/app/core/
+COPY --chown=app:app backend/cli/ backend/cli/
+COPY --chown=app:app unitforge-cli .
+
+RUN chmod +x unitforge-cli
+
+USER app
+
+ENTRYPOINT ["./unitforge-cli"]