Bump version to 0.4.7

Merge pull request #23 from comfuture/copilot/fix-22

Separate example codes from README and add OpenAI, Claude, MCP examples

version bump

Bump version to 0.4.4

Merge pull request #14 from comfuture/feature-check

Feature check

fix typo

Merge pull request #8 from comfuture/enhance-doc-meta

Enhance `Doc` in `Annotation` and implement its tests

Bump version to 0.4.0

Merge pull request #5 from comfuture/literal-type

drop "integer" in schema type

Merge pull request #4 from comfuture/literal-type

Fix enum handling in get_function_schema