Ar/psr 28 implement transfer

rust-src/concordium_base/CHANGELOG.md

@@ -1,5 +1,23 @@
 ## Unreleased
 - `cbor::cbor_encode` is now infallible and returns `Vec<u8>` instead of `CborSerializationResult<Vec<u8>>`
+- Removed the module `upward`. This will be added to Rust SDK crate instead. 
+- Changes to `protocol_level_tokens` module:
+  - Removed the usage of `Upward` in `TokenOperations` type. To CBOR decode and allow unknown variants,
+    the new function `TokenOperationsPayload::decode_operations_maybe_known` can be used instead.
+  - Removed the types `TokenModuleRejectReason`, `TokenEvent`, `TokenEventDetails`, `TokenModuleEvent`. These types 
+    will be moved to the Rust SDK crate.
+  - Renamed the existing type `TokenModuleEventType` that contains full token module events to `TokenModuleEventEnum` and
+    created a new `TokenModuleEventType` that is only the type of event. The new methods
+    `TokenModuleEventEnum::encode_event` and `TokenModuleEventEnum::decode_event` allows CBOR encoding from and CBOR decoding
+    to `TokenModuleEventEnum`. The new methods `TokenModuleEventType::to_type_discriminator` and
+    `TokenModuleEventType::try_from_type_discriminator` allows converting between `TokenModuleEventType`
+    and `TokenModuleCborTypeDiscriminator`.
+  - Renamed the existing type `TokenModuleRejectReasonType` that contains full token module reject reasons to `TokenModuleRejectReasonEnum` and
+    created a new `TokenModuleRejectReasonType` that is only the type of reject reason. The new methods
+    `TokenModuleRejectReasonEnum::encode_reject_reason` and `TokenModuleRejectReasonEnum::decode_reject_reason` allows CBOR encoding from and CBOR decoding
+    to `TokenModuleRejectReasonEnum`. The new methods `TokenModuleRejectReasonType::to_type_discriminator` and
+    `TokenModuleRejectReasonType::try_from_type_discriminator` allows converting between `TokenModuleRejectReasonType`
+    and `TokenModuleCborTypeDiscriminator`. 
 
 ## 10.0.0 (2026-01-09)
 

rust-src/concordium_base/src/common/mod.rs

@@ -53,4 +53,3 @@ pub type size_t = usize;
 /// Module that provides a simple API for symmetric encryption in the output
 /// formats used by Concordium.
 pub mod encryption;
-pub mod upward;