wahnsinn vibe

backend/core/di.py

@@ -0,0 +1,18 @@
+"""Minimal service registry. Apps call `register_service(name, instance)` at startup."""
+from typing import Any
+
+_services: dict[str, Any] = {}
+
+
+def register_service(name: str, instance: Any) -> None:
+    _services[name] = instance
+
+
+def get_service(name: str) -> Any:
+    if name not in _services:
+        raise KeyError(f"Service not registered: {name}")
+    return _services[name]
+
+
+def has_service(name: str) -> bool:
+    return name in _services