PyneCore v6.5.7 released — TradingView-parity fixes in the strategy broker emulator plus…

Fixes

• request.security() now instantiates per call site — a helper’s request.security() called from N sites is N distinct data requests again, instead of all sharing the first call site’s symbol/timeframe (new SecurityInstantiationTransformer).
• Strategy order book no longer drops an order that reuses a price level: switched orders_at_price off defaultdict so a stale empty bucket can’t shadow a live price during the intrabar walk.
• Same-bar reversing strategy.entry is now margined on both legs at once, matching TV — the flip is rejected when old + new margin exceeds equity (prior-bar reversals unaffected). Verified against live BINANCE:BTCUSDT probes.
• Generalized the sub-1e7 money-tick entry snap in _judge_money_entry to a scale-dependent grid, adding a 0.005 band on [1.2e7, 1.3e7] cost ticks.

Full release notes: https://github.com/PyneSys/pynecore/releases/tag/v6.5.7