fix(coherence): Add all trading enums aligned with DDL (E-COH-002, ST1.4)
- Extended src/modules/trading/types/order.types.ts with all DDL enums
- Added OrderType with trailing_stop support
- Added PositionStatus (open, closed, liquidated)
- Added SignalType (entry_long, entry_short, exit_long, exit_short, hold)
- Added ConfidenceLevel (low, medium, high, very_high)
- Added Timeframe (1m, 5m, 15m, 30m, 1h, 4h, 1d, 1w, 1M)
- Added BotType (paper, live, backtest)
- Added BotStatus (active, paused, stopped, error)
All types now aligned with trading.* enums from DDL schema.
Provides comprehensive type definitions for trading module.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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