Add trading cockpit exchange guard

trade_web/exchange.py

@@ -0,0 +1,49 @@
+from __future__ import annotations
+
+import time
+from typing import Any
+
+
+class ExchangeGuard:
+    def status(self, config: dict[str, Any]) -> dict[str, Any]:
+        execution = config.get("execution", {})
+        blockers = self._blockers(execution)
+        return {
+            "exchange": execution.get("exchange", "binance"),
+            "mode": execution.get("mode", "paper"),
+            "testnet": bool(execution.get("testnet", True)),
+            "live_ready": not blockers,
+            "blockers": blockers,
+        }
+
+    def place_order(self, config: dict[str, Any], order: dict[str, Any]) -> dict[str, Any]:
+        execution = config.get("execution", {})
+        blockers = self._blockers(execution)
+        if blockers:
+            return {
+                "status": "blocked",
+                "created_at": int(time.time()),
+                "blockers": blockers,
+                "order": order,
+                "message": "Live-Order wurde nicht gesendet. Safety-Guard ist aktiv.",
+            }
+        return {
+            "status": "not_implemented",
+            "created_at": int(time.time()),
+            "order": order,
+            "message": "Connector ist vorbereitet, aber echte REST-Order-Signatur ist bewusst noch nicht aktiv.",
+        }
+
+    def _blockers(self, execution: dict[str, Any]) -> list[str]:
+        blockers = []
+        if execution.get("mode", "paper") != "live":
+            blockers.append("execution.mode ist nicht live")
+        if execution.get("kill_switch", True):
+            blockers.append("kill_switch aktiv")
+        if not execution.get("allow_live_orders", False):
+            blockers.append("allow_live_orders false")
+        if execution.get("require_manual_confirm", True):
+            blockers.append("manuelle Freigabe erforderlich")
+        if not execution.get("api_key_env") or not execution.get("api_secret_env"):
+            blockers.append("API-Key-ENV nicht konfiguriert")
+        return blockers