v2.0.0 New APIs, header-based auth, removed deprecated methods

What's Changed

• [SCR-383] Auto-Mode (mode=auto) support by @kostas-jakeliunas-sb in #24
• [SCR-576] Align SDK with llms.txt: new endpoints, removed endpoints, exhaustive param type hints by @sahilsunny in #25
• [SCR-584] Send API key via Authorization header by @sahilsunny in #26

New Contributors

• @kostas-jakeliunas-sb made their first contribution in #24

Full Changelog: v1.8.2...v2.0.0