feat: integrate local architecture with HF Space

feat(C7): add calendar/seasonality features + 36m lookback; PASSED

feat(C1): add fracdiff features — FAILED validation, not added to FEATURE_COLUMNS

feat: add SOX and TNX cross-asset features

feat: add Amihud illiquidity, momentum features, and 200MA regime gate

feat: Phase 1 prediction improvements — alignment, BIAS, interactions, confidence gate

feat: add chip_score, MA120/240, margin flow, and TA distillation

feat: ML ensemble upgrade — LightGBM, cross-asset features, walk-forward embargo

feat: comprehensive optimization — 30 improvements across ML, perf, frontend, security, architecture

refactor: improve ML features, LINE Flex Messages, watchlist panel, health endpoint

deploy: initial release