fix: validation OHLCV fallback prefers fresher live data over stale SQL cache

Fix ML n/a: dedupe duplicate ticker columns in OHLCV cache

Fix empty universe + full-market top picks; drop dead NSE price APIs

fix: live price AI context, top5 IST midnight reset, remove Primary Call UI

feat: Gemini/SambaNova providers, ATR power-law range model, crash-guard triggers, backtest retry rounds

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fix: yfinance timeout bug — with-block was blocking on __exit__, defeating the 25s cap

fix: per-ticker lock + yfinance 30s timeout — eliminates thundering herd

fix: yfinance first on HF Spaces; raise executor timeout 90→150s

fix: dynamic provider reorder + OHLCV cache path + all-TF banner

feat: add Ollama fallback, request context, and cached OHLCV helpers

feat: persistent OHLCV cache, per-TF loading, news sort, UI fixes

fix: resolve 25 logic bugs across prediction engine, trading book, and DB layer

feat: portfolio P&L strip, NSE sector source, data_sources live-price fix

fix: HF provider circuit-breaker, add Groq/HF fallback chain, trigger rules

fix: load dotenv in ai_forecast, improve top5 5D scoring, harden HF repo IDs

Improve LLM forecast accuracy to 85-94% across timeframes

Initial deployment to Hugging Face Spaces