Update Dockerfile to exclude dev dependencies and adjust PATH

[ritwikshanker]

This pull request makes a few updates to the Dockerfile to optimize the production image and environment setup. The most notable changes involve modifying dependency installation to exclude development packages, updating the PATH to include the virtual environment, and simplifying the entrypoint command.

Dockerfile improvements:

• Changed the uv sync command to use --no-dev, ensuring that only production dependencies (excluding development packages) are installed.
• Added the virtual environment's bin directory to the PATH by setting ENV PATH="/app/.venv/bin:$PATH", which ensures that executables from the virtual environment are accessible.
• Updated the ENTRYPOINT to call uvicorn directly, removing the redundant uv run wrapper for a simpler and more standard container startup.…ration