Refactor/add uv

[AtomicAlexD]

This pull request introduces significant updates to modernize the project, enhance its functionality, and improve user experience. Key changes include migrating to a new project structure with pyproject.toml, replacing the command-line interface with a web-based UI, updating the Python version, and revising the documentation to reflect these changes.

Project Modernization:

• Added pyproject.toml to define project metadata, dependencies, and development tools, enabling better dependency management and compatibility with modern Python tooling.
• Updated the Python version to 3.11 in .python-version.

Migration to Web-Based UI:

• Replaced the old simple_rag.py script with a web-based interface, including a new HTML template (src/templates/index.html) for the chat functionality. This provides a more user-friendly experience and supports real-time interactions. [1] [2]

Documentation Updates:

• Updated README.md to reflect the new setup process, including instructions for installing dependencies with UV and running the system using the new web-based interface. [1] [2]

Codebase Simplification:

• Removed simple_rag.py, which implemented the old command-line-based retrieval-augmented generation (RAG) system, as it has been replaced by the new architecture.

[Copilot]

Pull Request Overview

This PR modernizes the project by migrating from a CLI-based RAG system to a web-based UI, adds modern Python packaging, and updates documentation and environment settings.

• Replaced simple_rag.py CLI with src/templates/index.html web chat interface and client-side logic
• Added pyproject.toml for project metadata, tooling, and packaging; bumped Python version to 3.11
• Updated README.md to use Ultraviolet (UV) for dependency management and revised run instructions

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/templates/index.html	New HTML/CSS/JS template for interactive RAG chat UI
simple_rag.py	Removed legacy CLI-based RAG implementation
pyproject.toml	Added modern project configuration, dependencies, and build setup
README.md	Updated install and run instructions to use UV and new entrypoint
.python-version	Set project Python version to 3.11

Comments suppressed due to low confidence (2)

pyproject.toml:43

• The entry point simple_rag.main:main no longer exists after removing simple_rag.py. Update this script mapping to point at the new web runner (e.g., run_rag:main in src/run_rag.py) or remove it if unused.

simple-rag = "simple_rag.main:main"

src/templates/index.html:136

• [nitpick] New client-side logic for sending messages and error handling has been added but isn’t covered by automated tests. Consider adding UI or integration tests (e.g., with Playwright or Cypress) to validate core chat behaviors.

<script>