feat(domain): add memory module with page pool, per-process tracking, and region table

crates/domain/src/resource.rs

@@ -1,9 +1,4 @@
-use types::{
-    address::VirtualAddress,
-    bounded::PageCount,
-    generation::Generation,
-    id::{EndpointId, IrqId, ProcessId, RegionId},
-};
+use types::id::{EndpointId, IrqId, ProcessId, RegionId};
 
 #[derive(Clone)]
 pub enum Resource {
@@ -13,10 +8,3 @@ pub enum Resource {
     Interrupt(IrqId),
     ProcessCreate,
 }
-
-pub struct MemoryRegion {
-    id: RegionId,
-    base: VirtualAddress,
-    size: PageCount,
-    generation: Generation,
-}