ADA 4H Multi-Bar Down-Streak Reversal Long (Pullback Exhaustion in Established Uptrend)

A long-only, single-instrument, single-timeframe strategy on ADAUSDT.BINANCE 4H bars. Implements a NEW structural mechanism aligned with the analyst's regime-decay warning: breakout strategies (sequence-based HH, channel-width expansion, ATR-expansion) failed in the 2025+ lower-vol regime, but PULLBACK-REVERSAL strategies should thrive (the just-landed ADAPullbackToRangeMidpointLong is an example). The mechanism: detect when 3+ consecutive bars have each closed LOWER than the prior bar (a down-streak — pullback within a broader uptrend) AND price has STAYED ABOVE the 100-bar SMA throughout (the broader uptrend is still intact — this is a dip-buy, not a falling-knife catch). The first BULLISH bar after the down-streak (close > open) signals the pullback has been bought and momentum has flipped. Enter long on that bullish reversal bar. Critically distinct from every existing ADA 4H mechanism: (a) NOT breakout-based (entries are at the END of pullbacks, not at channel-extreme breaches — sidesteps the regime-decay vulnerability flagged by analyst); (b) NOT failed-reclaim/absorption (uses count-based down-sequence with trend-still-intact, not a single-bar wick); (c) NOT pullback-to-midpoint (uses CONSECUTIVE down-bar SEQUENCE not midpoint proximity); (d) NOT statistical signals; (e) sequence-based + structural per analyst's successful-pattern profile. The mechanism captures the rhythm of liquid 4H crypto in lower-vol regimes: pullbacks happen, but they get bought — entering at the moment of buy-back signal extracts the rebound move.