feat: unify system status codes

template/sysroot/include/montauk/statuscodes.h

@@ -0,0 +1,35 @@
+/*
+    * statuscodes.h
+    * MontaukOS status codes
+    * Copyright (c) 2026 Daniel Hammer
+*/
+
+#pragma once
+
+// Userspace mirror of kernel/src/Common/StatusCodes.hpp. Also usable from C
+// (the libc includes it), where the enumerators are unqualified.
+#ifdef __cplusplus
+namespace montauk {
+#endif
+
+enum StatusCodes {
+    Success = 0,
+    GenericFailure = -1,
+    PermissionDenied = -2,
+    CapabilityDenied = -3,
+    SystemIntegrityError = -4,
+    BadPointer = -5,
+    InvalidArgument = -6,
+    UnsupportedOp = -7,
+    NoDevice = -8,
+    IoFailure = -9,
+    BadInvocation = -10,
+    NoSuchPath = -11,
+    Busy = -12,
+    BufferTooSmall = -13,
+    OutOfMemory = -14
+};
+
+#ifdef __cplusplus
+}
+#endif