feat(domain): add EndpointTable, IrqRoutingTable, and remaining error variants

crates/domain/src/error.rs

@@ -1,6 +1,6 @@
 use types::{
     bounded::CapSlot,
-    id::{ProcessId, ThreadId},
+    id::{EndpointId, IrqId, ProcessId, ThreadId},
     permission::Permission,
 };
 
@@ -18,4 +18,9 @@ pub enum KernelError {
     InvalidThread(ThreadId),
     TooManyThreads,
     OutOfMemory,
+    InvalidEndpoint(EndpointId),
+    InvalidIrq(IrqId),
+    EndpointFull,
+    ProcessCreateDenied,
+    IrqAlreadyOwned(IrqId),
 }