Fix HF deployment serving stale BESS list with fictional DUIDs

Fix era-aware file matching for pre-Apr 2025 SCADA data and add warnings system

Replace inline expand with modal for data-type About panels

Add hoverable/expandable About panels to data-type checkboxes

Fix chart width (Plotly hidden-container) and add section spacing

Add 5-minute dispatch energy data, data-type checkboxes, remove preview table

Add learned wait-time estimates and stretch chart to fill frame

Catch all network errors; show HTTP status on frontend error

Improve loading time estimate and add disclaimer

Disable all form controls while data is loading

Fix BESS columns, dropdown format, and date picker UX

Initial implementation: NEM Battery SCADA Data Explorer