docs: fix Python version requirement to 3.10+

[ryoppippi]

Summary

• Fix documentation to correctly state Python 3.10+ requirement
• Update README.md, CLAUDE.md, and development-workflow.md
• Aligns with pyproject.toml which specifies requires-python = ">=3.10"

Test plan

• Verify pyproject.toml states >=3.10
• Verify all docs now consistently say 3.10+

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Summary by cubic

Corrected the Python version requirement to 3.10+ across docs to match pyproject.toml, avoiding confusion for Python 3.10 users.
Updated README.md, CLAUDE.md, and development-workflow to reflect 3.10+ typing features and version support.

^{Written for commit 0734c77. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 3 files

[Copilot]

Pull request overview

Updates project documentation to consistently state the minimum supported Python version as 3.10+, aligning with pyproject.toml (requires-python = ">=3.10").

Changes:

• Update Python version requirement in README.md
• Update Python version references in CLAUDE.md
• Update typing-features guidance in .claude/rules/development-workflow.md

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
README.md	Updates the stated minimum Python requirement to 3.10+.
CLAUDE.md	Aligns contributor/type-safety guidance and version requirement with Python >=3.10.
.claude/rules/development-workflow.md	Updates typing feature guidance to Python 3.10+.

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[Copilot]

README now states Python 3.10+ as the minimum requirement, but CHANGELOG.md still contains entries indicating Python 3.10 was dropped and the minimum was bumped to 3.11 (e.g., CHANGELOG.md under the 2.0.0 breaking changes / chores). Consider updating the changelog (or adding a follow-up entry) so repository documentation is consistent about the currently supported minimum Python version.

Suggested change

	- Python 3.10+
	- Python 3.11+