feat: autonomous trading engine — full implementation

- Database migration 018 with 13 tables for trading engine state
- Trading engine service (services/trading/) with 12 pure computation modules:
  position sizer, stop-loss manager, reserve pool, circuit breaker,
  risk tier controller, correlation matrix, tax lots, trading window,
  gradual entry, notifications, micro-trading, backtester
- Core TradingEngine with pre-trade evaluation pipeline and integration wiring
- FastAPI HTTP service with 14 endpoints (health, config, decisions, metrics, backtest)
- Performance tracker with Sharpe ratio, drawdown, profit factor computation
- 194 Python tests (165 property-based + 29 integration)
- Frontend: 13 TanStack Query hooks, 7 dashboard panels, tabbed Trading Engine page
- Helm chart entry, network policy, nginx proxy, ingress for trading-engine
- Shared infrastructure: enums, Redis keys, TradingConfig in AppConfig

services/shared/schemas.py

@@ -103,6 +103,39 @@ class EstimatedDuration(str, Enum):
     LONG_TERM = "long_term"
 
 
+# --- Autonomous Trading Engine Enums ---
+
+
+class TradingDecisionType(str, Enum):
+    ACT = "act"
+    SKIP = "skip"
+
+
+class CircuitBreakerTriggerType(str, Enum):
+    DAILY_LOSS = "daily_loss"
+    SINGLE_POSITION = "single_position"
+    VOLATILITY = "volatility"
+    MANUAL = "manual"
+
+
+class ReservePoolTriggerType(str, Enum):
+    PROFIT_SIPHON = "profit_siphon"
+    EMERGENCY_LIQUIDATION = "emergency_liquidation"
+    MANUAL_ADJUSTMENT = "manual_adjustment"
+    INITIAL = "initial"
+
+
+class NotificationChannel(str, Enum):
+    SMS = "sms"
+    EMAIL = "email"
+
+
+class RiskTierName(str, Enum):
+    CONSERVATIVE = "conservative"
+    MODERATE = "moderate"
+    AGGRESSIVE = "aggressive"
+
+
 # --- Document Intelligence ---
 
 class CompanyImpact(BaseModel):