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- New /bigscreen-3d route: React Three Fiber 3D campus with buildings, PV panels, heat pumps, meters, and sensors — all procedural geometry - Interactive: hover highlight, click to select, camera fly-in to device detail views (PV inverter, heat pump, meter, heat meter, sensor) - Real-time data: 15s polling for overview, 5s for selected device - Energy flow particles along PV→Building, Grid→Building, Building→HP paths - HUD overlay with date/clock, bottom metrics bar, device list panel - New /bigscreen route: 2D dashboard with energy flow diagram, charts - New /devices route: device management page - Vite config: optimizeDeps.force for R3F dep consistency - Data backfill script for testing Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>