Initial commit: A-Share Data Platform v0.1.0

Parquet + DuckDB storage with REST/WebSocket APIs for Chinese A-share
market data. Supports 9 K-line frequencies with dual backend
(East Money / Sina) and auto-fallback.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/ashare_dp/cli/serve_cmd.py

@@ -0,0 +1,39 @@
+"""Serve CLI subcommand: start the API server."""
+
+from __future__ import annotations
+
+import asyncio
+
+import typer
+import uvicorn
+from loguru import logger
+
+from ashare_dp.config import Settings
+
+settings = Settings()
+serve_app = typer.Typer()
+
+
+@serve_app.command("start")
+def serve(
+    host: str = typer.Option(None, help="Bind address"),
+    port: int = typer.Option(None, help="Bind port"),
+    reload: bool = typer.Option(False, help="Enable auto-reload (dev mode)"),
+):
+    """Start the API server with scheduler."""
+    h = host or settings.api_host
+    p = port or settings.api_port
+
+    logger.info(f"Starting API server on {h}:{p}")
+
+    # Start the realtime poller in a background thread via the app lifespan
+    # The FastAPI lifespan handles DB init, scheduler start, and poller start
+
+    uvicorn.run(
+        "ashare_dp.api.app:create_app",
+        host=h,
+        port=p,
+        reload=reload,
+        factory=True,
+        log_level=settings.log_level.lower(),
+    )