fix: remove docs requirements file

[gemmadanks]

Removes requirements file for docs and pre-commit hook that generates it. Uses pyproject.toml optional extras for RTD instead. Prevents dependabot PRs failing checks.

Prerequisites checklist

Please check each of the following before merging:

• I have updated any relevant documentation
• I have added unit tests for any new code
• I have linked to any relevant issues
• I will squash my commits and, where needed, edit the commit messages to make them more informative follow the conventional commits format
• This pull request is ready to merge (leave unchecked to indicate a WIP)

What is the purpose of this pull request?

Check all that apply:

• Documentation update

• Bug fix

• New feature

• Changes to an existing feature

• Refactor

• Increasing test coverage

• Other, please explain:

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[Copilot]

Pull Request Overview

This PR modernizes documentation dependency management by migrating from a dedicated requirements file to Poetry's optional dependencies feature. This change prevents dependabot PRs from failing due to outdated requirements file generation.

• Moves documentation dependencies from docs/requirements.txt to pyproject.toml optional dependencies
• Updates ReadTheDocs configuration to use pip with extras instead of requirements file
• Removes pre-commit hook that generated the requirements file

Reviewed Changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pyproject.toml	Updates license format and restructures docs dependencies as optional extras
docs/requirements.txt	Removes the entire requirements file (132 lines)
README.md	Updates installation command to use --all-extras flag
.readthedocs.yaml	Configures RTD to install docs extras instead of requirements file
.pre-commit-config.yaml	Removes poetry-export hook that generated requirements file
.github/workflows/docs-pages.yaml	Updates workflow to install docs extras
.github/workflows/ci.yaml	Updates workflows to install all extras for comprehensive testing

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[Copilot]

Pull Request Overview

Copilot reviewed 7 out of 8 changed files in this pull request and generated no new comments.

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