perf: replace slow matplotlib UI stream with instant episode backtest to prevent web platform stutter

fix: resolve matplotlib memory leak in dashboard simulation loop

fix: enforce hard dark theme and transparent metric internals to prevent white background UI bug

style: FinTech trading UI overhaul with dark aesthetic and improved evaluation view

fix: use supported color in Hugging Face metadata

fix: add Hugging Face Space metadata to README

docs: finalize performance benchmarks in README

chore: full premium production sync (Hub-driven model/data)

feat: Hub-first logic, premium UI, and data lifecycle (sampler moved to Hub)

fix: embed model weights as base64 to bypass hf_hub_download hanging issue on spaces

Initialize final clean source-only repository with embedded weights