v0.9.0

• chore: release 0.9.0 (bdb1f54)
• chore: bump typescript to 6 (5cedf99)
• chore: bump markdown-it to 15 (ec81599)
• chore: bump shiki to 4 (83c2924)
• chore: bump commander to 15 (9874235)
• chore: require node 22.12 and test 22 and 24 (107ef15)
• chore: bump vite to 8 (511f4f3)
• chore: bump markdown-it-anchor to 10 (f5c2a73)
• refactor: replace gray-matter with yaml (88a2df7)
• chore: update deps (ca2cbff)
• fix: narrow optional description in test (89f46b9)
• feat: og.png override in docs folder (d968135)
• feat: auto social cards and search metadata (ef58805)
• feat: add logo favicon and footer logo (c51a337)
• docs: add logo (8bbc522)