feat: initial trading platform implementation

Binance spot crypto trading platform with microservices architecture:
- shared: Pydantic models, Redis Streams broker, asyncpg DB layer
- data-collector: Binance WebSocket/REST market data collection
- strategy-engine: Plugin-based strategy execution (RSI, Grid)
- order-executor: Order execution with risk management
- portfolio-manager: Position tracking and PnL calculation
- backtester: Historical strategy testing with simulator
- cli: Click-based CLI for all operations
- Docker Compose orchestration with Redis and PostgreSQL
- 24 test files covering all modules

1 files changed, 20 insertions, 0 deletions

diff --git a/cli/src/trading_cli/commands/portfolio.py b/cli/src/trading_cli/commands/portfolio.py
new file mode 100644
index 0000000..9389bac
--- /dev/null
+++ b/cli/src/trading_cli/commands/portfolio.py
@@ -0,0 +1,20 @@
+import click
+
+
+@click.group()
+def portfolio():
+    """Portfolio management commands."""
+    pass
+
+
+@portfolio.command()
+def show():
+    """Show the current portfolio holdings and balances."""
+    click.echo("Fetching current portfolio...")
+
+
+@portfolio.command()
+@click.option("--days", default=30, show_default=True, help="Number of days of history")
+def history(days):
+    """Show PnL history for the portfolio."""
+    click.echo(f"Fetching PnL history for the last {days} days...")