Docs: homepage, Team/License pages, user guide & README updates, feature-focused

[AhmedRadwan02]

Summary

Documentation updates:

• Docs homepage: FairSense-style landing with PyPI badge, Colab link, two demo UI videos (silent/voiced), Highlights (detection, classification, reasoning, debiasing), Quick start, and Contents.
• New pages: Team (contributors, acknowledgement, support) and License (Apache 2.0).
• User guide: Default model set to vector-institute/Unbias-plus-Qwen2.5, serve/demo UI and Python API examples updated, dev port note for MkDocs.
• README & copy: De-emphasised "single model"; refocused on features (bias detection, classification, reasoning, debiasing, structured output). Same messaging in docs/index.md, pyproject.toml description, and FastAPI app description.
• API reference: Short intro added to api.md.
• Nav: Team and License added to MkDocs nav and index Contents.

Clickup Ticket(s): Link if applicable.

Type of Change

• ✨ New feature (non-breaking change that adds functionality)

Changes Made

• New docs homepage (index.md): PyPI/Colab/video links, Highlights (detection, classification, reasoning, debiasing), Quick start, Contents
• New pages: team.md (Team, Acknowledgement, Support), license.md (Apache 2.0)
• User guide: default model vector-institute/Unbias-plus-Qwen2.5, updated serve/Python examples, MkDocs port note
• README, index.md, pyproject.toml, api.py: feature-focused copy; removed “single model” emphasis
• api.md: short intro paragraph
• mkdocs.yml: nav entries for Team and License; index.md Contents links to both

Testing

• Tests pass locally (uv run pytest tests/)

Checklist

• Code follows the project's style guidelines
• Self-review of code completed
• Documentation updated (if applicable)
• No sensitive information (API keys, credentials) exposed