streamdown

Closes #422 Summary When overriding streamdown's component with custom React components, the built-in copy/download buttons are lost because custom components fully replace default implementations. The table action components (, ) and their utilities are internal — not exported from the public API. This PR adds exports to the main entry point so consumers can import these components and wire them into custom table overrides. Changes Export table components from : , , with their prop types Export table utilities: , , , , , Fix icon type error: Replace with on SVG icons in table components (pre-existing type issue exposed by new exports) Add documentation section in explaining how to preserve table interactivity with custom overrides Add changeset** for minor version bump Test Plan [x] — streamdown package builds successfully with new exports [x] — all 792 tests pass (59 test files) [x] — linting/formatting passes [x] Generated includes all new type exports

Problem When overriding streamdown's component with custom React components via the prop, the built-in copy and download buttons are lost. This happens because custom components fully replace default implementations, and the table action components (, ) and their utilities are internal — not exported from the public API. There's no way for consumers to import these components and wire them into their custom table overrides. Expected Behavior Table action components and utilities should be exported from streamdown's public API so consumers can preserve copy/download interactivity when using custom table components: Additional Context The components already exist internally (, , ) — they just need to be re-exported from the main entry point.