Add multi-provider compare API route + providers listing endpoint

Add providers listing API endpoint

Add universal LLM provider layer supporting 12 providers including Ollama

Add Claude-powered compare API route with dual-pipeline orchestration

Add Footer component with TigerGraph\u00d7Claude branding

Add Tab 4: Graph Explorer with interactive SVG knowledge graph visualization

Add Tab 3: Cost Analysis with cumulative cost chart and projections

Add Tab 2: Benchmark with radar chart and data table

Add Tab 1: Live Query Comparison with side-by-side pipeline display

Add DashboardTabs controller + 4 tab panels

Add Hero section with editorial serif display and architecture diagram

Add Navbar component with TigerGraph\u00d7Claude branding

Add main page with hero, navbar, and tab controller

Add root layout with font loading and metadata

Add global CSS with TigerGraph\u00d7Claude fused design system

Add fused TigerGraph\u00d7Claude design tokens