Release v1.2.0

What's Changed

• [codex] fix doc typo audit findings by @fa-yoshinobu in #13
• [codex] Improve sample navigation and reconnect examples by @fa-yoshinobu in #14
• [codex] Complete Python API doc coverage by @fa-yoshinobu in #15
• [codex] Add operational polling recipes by @fa-yoshinobu in #16

Full Changelog: v1.1.0...v1.2.0