Harden realtime market processing

[pjy008008]

What changed

• persist display-only 1m OHLCV history while retaining the 250ms realtime Redis Pub/Sub path
• keep strategy evaluation on finalized 30m/1h/4h/1d events, including mixed cadence plans
• isolate runtime sequence and feature state per instrument
• drain excessive stream lag without stale orders, bound retries with a DLQ, ACK availability-denied events, and expose metrics
• bound Redis stream/dedup storage and retry missing finalized candles

Why

The worker could deadlock while behind, poison entries could remain pending forever, and display candles had no restart-safe history.

Impact

Realtime charts receive low-latency updates plus durable minute bootstrap data. Strategy workers recover safely without replaying stale orders or accumulating unbounded Redis state.

Validation

• ./gradlew.bat check
• Redis/Testcontainers coverage for stream recovery, DLQ behavior, availability skips, OHLCV aggregation, and history trimming