Get all processors to compile again

Requires splitting `serai-cosign` into `serai-cosign` and `serai-cosign-types`
so the processor don't require `serai-client/serai` (not correct yet).

substrate/primitives/src/instructions/in/batch.rs

@@ -93,6 +93,7 @@ impl BorshDeserialize for Batch {
 }
 
 /// An error incurred while pushing an instruction onto a `Batch`.
+#[derive(Debug)]
 pub enum PushInstructionError {
   /// The Batch's max size was exceeded.
   MaxSizeExceeded,

substrate/primitives/src/instructions/in/mod.rs

@@ -80,7 +80,7 @@ pub struct RefundableInInstruction {
 #[derive(Clone, PartialEq, Eq, Debug, Zeroize, BorshSerialize, BorshDeserialize)]
 pub struct InInstructionWithBalance {
   /// The instruction on how to handle coins in.
-  pub instruction: OutInstruction,
+  pub instruction: InInstruction,
   /// The coins in.
   pub balance: ExternalBalance,
 }

substrate/primitives/src/instructions/mod.rs

@@ -1,5 +1,8 @@
 mod r#in;
-pub use r#in::{InInstruction, InInstructionWithBalance, PushInstructionError, Batch, SignedBatch};
+pub use r#in::{
+  InInstruction, InInstructionWithBalance, RefundableInInstruction, PushInstructionError, Batch,
+  SignedBatch,
+};
 
 mod out;
 pub use out::{OutInstruction, OutInstructionWithBalance};