[pallet-assets-precompiles] add foreign assets instance to kitchensink (#11460)

## Summary

- Set `CallbackHandle =
(pallet_assets_precompiles::ForeignAssetId<Runtime, Instance1>,)`
  in `pallet_assets::Config<Instance1>` for the kitchensink runtime.
- Asset creation (`create`, `force_create`) now automatically populates
a sequential
  foreign asset index mapping. Asset destruction cleans it up.

## Test plan

- [x] Run [end-to-end
tests](paritytech/evm-test-suite#142) (requires
substrate-node, eth-rpc, node, cast)
- [x] Revert CallbackHandle to `()` and confirm end-to-end tests fail


Alternatively run this bashscript for testing:
https://gist.github.com/0xRVE/99bbc5ec7fcabeb54e3b797bd4cc97c8

---------

Co-authored-by: cmd[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: 0xRVE

prdoc/pr_11460.prdoc

@@ -0,0 +1,16 @@
+title: '[pallet-assets-precompiles] add foreign assets instance to kitchensink'
+doc:
+- audience: Runtime Dev
+  description: |-
+    ## Summary
+
+    - Set `CallbackHandle = (pallet_assets_precompiles::ForeignAssetId<Runtime, Instance1>,)`
+      in `pallet_assets::Config<Instance1>` for the kitchensink runtime.
+    - Asset creation (`create`, `force_create`) now automatically populates a sequential
+      foreign asset index mapping. Asset destruction cleans it up.
+
+    ## Test plan
+
+    - [x] Run [end-to-end tests](https://github.com/paritytech/evm-test-suite/pull/142) (requires substrate-node, eth-rpc, node, cast)
+    - [x] Revert CallbackHandle to `()` and confirm end-to-end tests fail
+crates: []

substrate/bin/node/runtime/src/lib.rs

@@ -1908,7 +1908,7 @@ impl pallet_assets::Config<Instance1> for Runtime {
 	type Holder = ();
 	type Freezer = ();
 	type Extra = ();
-	type CallbackHandle = ();
+	type CallbackHandle = (pallet_assets_precompiles::ForeignAssetId<Runtime, Instance1>,);
 	type WeightInfo = pallet_assets::weights::SubstrateWeight<Runtime>;
 	type RemoveItemsLimit = ConstU32<1000>;
 	#[cfg(feature = "runtime-benchmarks")]