⚠Cannot reach the analysis API.
Start it with uv run uvicorn sei_api.main:app --port 5870 from the repository root. It analyses ~618k readings on startup, which takes a few seconds.
Error: 404 /api/portfolio/london-se/brighton-lanes/london-head-office-elec?from=2026-03-01&to=2026-04-01 — {"detail":"meter 'london-head-office-elec' does not belong to site 'brighton-lanes'"}