Merge C19: adaptive triple-barrier labeling into old_wang_dev

Merge HF artifact commits; keep login-removal codebase

Remove entire login/auth system; anonymous localStorage favorites

Remove Google login from frontend

Improve dashboard latency caching

Temporarily skip login and add validation config report

Merge remote-tracking branch 'hf/main' into codex/self-refine-validation-gate

feat: integrate local architecture with HF Space

Clarify prediction reliability display

Clarify watchlist quick estimates

Fix HF queue prediction placeholders

fix: HF Space always returns Mac ML result on first call

fix: sync static/ with latest frontend build (quick-estimate banner)

feat: add Market Scan recommendation dashboard

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

feat: add institutional signals and HF-friendly deploy

fix: sync frontend/dist → static/ (was serving stale JS)

build: rebuild static frontend with quote panel and recent features

fix: verification pass — backtest auto-trigger, consistent thresholds, enhanced stats

feat: restore BacktestPanel — historical backtest UI recovered from git history

feat: WatchlistPanel, LINE Flex Messages, batch API, prediction cache

feat: market tabs (台股/美股/基金), autocomplete search, favorites filter tabs

Add US stock and fund/ETF market support with ML prediction

feat: restore stop loss card, show all 5 price targets

feat: add buy_target price to prediction panel

fix: restore localStorage persistence so login survives page refresh

fix: show BacktestPanel as soon as stock loads; force HF rebuild

feat: Chinese stock name search autocomplete in header

fix: use inMemoryPersistence for Firebase on HF + better error display

debug: show full Google login error code on HF

fix: use signInWithPopup for Google login on HF

deploy: add backtest feature + updated static build 2026-03-15 12:19

debug: show full error message

fix: use signInWithRedirect for HF compatibility

fix: use signInWithPopup for Google login

deploy: initial release