Add daily model training scripts and terminal UI for live trading

- Introduced `train_daily.sh` for automating daily model retraining, including data download and model training steps.
- Added `install_cron.sh` for setting up a cron job to run the daily training script.
- Created `setup_schedule.sh` for configuring Systemd timers for daily training tasks.
- Implemented a terminal UI using Rich for real-time monitoring of trading performance, including metrics display and log handling.
- Updated `pyproject.toml` to include the `rich` dependency for UI functionality.
- Enhanced `.gitignore` to exclude model and log files.
- Added database support for trade persistence and metrics calculation.
- Updated README with installation and usage instructions for the new features.

live_trading/db/models.py

@@ -0,0 +1,69 @@
+"""Data models for trade persistence."""
+from dataclasses import dataclass, asdict
+from typing import Optional
+from datetime import datetime
+
+
+@dataclass
+class Trade:
+    """Represents a completed trade."""
+
+    trade_id: str
+    symbol: str
+    side: str
+    entry_price: float
+    size: float
+    size_usdt: float
+    entry_time: str
+    exit_price: Optional[float] = None
+    pnl_usd: Optional[float] = None
+    pnl_pct: Optional[float] = None
+    exit_time: Optional[str] = None
+    hold_duration_hours: Optional[float] = None
+    reason: Optional[str] = None
+    order_id_entry: Optional[str] = None
+    order_id_exit: Optional[str] = None
+    id: Optional[int] = None
+
+    def to_dict(self) -> dict:
+        """Convert to dictionary."""
+        return asdict(self)
+
+    @classmethod
+    def from_row(cls, row: tuple, columns: list[str]) -> "Trade":
+        """Create Trade from database row."""
+        data = dict(zip(columns, row))
+        return cls(**data)
+
+
+@dataclass
+class DailySummary:
+    """Daily trading summary."""
+
+    date: str
+    total_trades: int = 0
+    winning_trades: int = 0
+    total_pnl_usd: float = 0.0
+    max_drawdown_usd: float = 0.0
+    id: Optional[int] = None
+
+    def to_dict(self) -> dict:
+        """Convert to dictionary."""
+        return asdict(self)
+
+
+@dataclass
+class Session:
+    """Trading session metadata."""
+
+    start_time: str
+    end_time: Optional[str] = None
+    starting_balance: Optional[float] = None
+    ending_balance: Optional[float] = None
+    total_pnl: Optional[float] = None
+    total_trades: int = 0
+    id: Optional[int] = None
+
+    def to_dict(self) -> dict:
+        """Convert to dictionary."""
+        return asdict(self)