v1.25.0 ✅

• Documentation Website — MkDocs Material site auto-generated from README.md; 8 nav sections, dark/light, search, social cards
• DocFX API Reference landing page — Bootstrap namespace cards, Core Types grid, quick-links to docs/GitHub/NuGet
• CI optimization — path allowlist (src/tests only); docs commits no longer trigger test suite
• 2,843 tests (unchanged)