v0.51.898

What's Changed

• Release: Phase-1 batch — table whitespace (#5644), empty error-hint guard (#5653), Playwright CI (#5661) by @nesquena-hermes in #5663
• fix(#5641): tolerate edge whitespace in markdown table parsing by @rodboev in #5644
• Guard empty live-settlement error hints by @franksong2702 in #5653
• ci(#5658): install Playwright in pytest CI so browser tests run by @rodboev in #5661

Full Changelog: v0.51.897...v0.51.898