Crypto trading bot: engine, brokers, backtester, dashboard, deploy

FastAPI backend with a single-strategy async engine, paper and Binance
brokers, pure-python indicators, a backtester that shares the engine's
portfolio math, and a Vue dashboard with a live WebSocket feed. Adds the
Gitea Actions CI/CD workflow that deploys to Traefik via docker_default.

backend/app/engine/strategies/__init__.py

@@ -0,0 +1,35 @@
+from __future__ import annotations
+
+import importlib
+import pkgutil
+
+from app.engine.strategies.base import (
+    Strategy,
+    StrategyContext,
+    get_strategy,
+    list_strategies,
+    param_specs,
+    register,
+    strategy_spec,
+)
+
+
+def discover() -> None:
+    """Import every module in this package so its strategies self-register."""
+    for module_info in pkgutil.iter_modules(__path__):
+        if module_info.name.startswith("_") or module_info.name in {"base"}:
+            continue
+        importlib.import_module(f"{__name__}.{module_info.name}")
+
+
+discover()
+
+__all__ = [
+    "Strategy",
+    "StrategyContext",
+    "get_strategy",
+    "list_strategies",
+    "param_specs",
+    "register",
+    "strategy_spec",
+]