feat(kernel): shared ABI decoder+proofs, no-panic gate, syscall storm, kani on shrunk kernel

crates/domain/src/irq/mod.rs

@@ -8,7 +8,7 @@ use types::{
 #[path = "tests.rs"]
 mod tests;
 
-const MAX_IRQS: usize = 256;
+const MAX_IRQS: usize = if cfg!(kani) { 2 } else { 256 };
 
 /// Where an interrupt is delivered: a signal on a notification, through a
 /// capability snapshot (generation and badge) taken when the route was set.