Plain-language Hub charts: occupy rule, SOP by loan date, manuals on file

Replace Chrome HTML posters with matplotlib charts (occupancy, clock, lake)

SOP clock: 1001 / 1156 / 985 chunks

SOP clock cards: as_of examples + retrieve gates

SOP clock: three-era diagram, not a thin bar

Upload clock.png with huggingface_hub

Upload clock.png with huggingface_hub

Trace card: clock.png — clock, sources, training graph