wiki: update for v0.9.1 release Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs: update wiki for v0.9.0 release - Changelog: add v0.9.0 entry (pivot tables, threaded comments, slicers, timelines, CLI, feature-gated WASM, performance, API improvements) - Home: update version to 0.9.0, new features section - Sidebar: update version to 0.9.0 - API Reference: add pivot tables, threaded comments, slicers, timelines, CLI, error handling sections - Performance: update benchmarks with fresh v0.9.0 numbers - Feature Comparison: add advanced features section, update scorecard - Getting-Started: update CDN URLs, add CLI and threaded comments sections - Architecture: add new OOXML parser modules Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs: update all wiki pages for v0.3.0 - Version numbers: v0.2.0/v0.1.9 → v0.3.0 across all pages - CDN URLs: @0.2.0 → @0.3.0 (5 instances) - Test counts: 419 → 437 (157 Rust + 280 TypeScript) - WASM size: ~870 KB → ~939 KB, bundle total ~994 KB - New: Barcode & QR Generation section in API Reference - New: Barcode examples in Examples page - New: v0.3.0 changelog entry with features and bug fixes - Removed duplicate v0.2.0 changelog section - Added validate.rs to Architecture module tables - Added barcode row to migration guide comparisons Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Initial wiki: Getting Started, API Reference, Styling Guide, Performance, FAQ, Migration