tliu93
96e88861d4
M6-T10: frontend contract management + price/cost views + Tibber test
- EnergyPage: Mantine Tabs (Devices kept intact + Contracts/Prices/Costs).
- ContractManager/ContractForm: list/activate/add-version + version history;
form fields rendered dynamically from /api/energy/profiles structure.
- TibberPrices + CostView: Recharts price curve, cost trend/detail/summary,
recompute; window-bounded, currency/units from API, empty/error/loading states.
- ConfigPage: tri-state Tibber test button (token never shown).
- hooks.ts: typed energy hooks; schema.d.ts regenerated via codegen.