fix: backward compatibility for LCV1&LCV2 (#3631)

* revert jf

* rename to compat

* rescue upgrade

* comments

* compatibility_test

* typos

* gen-vk-contract

Author: mrain

.typos.toml

@@ -12,7 +12,11 @@ extend-exclude = [
   "node-metrics/src/api/node_validator/v0/example_prometheus_metrics_output.txt",
   "crates/hotshot/orchestrator/run-config.toml",
   "crates/hotshot/macros/src/lib.rs",
+  "crates/hotshot/types/src/light_client.rs",
   "staking-cli/tests/cli.rs",
   "sdks/go/types/common/consts.go",
   "data/insta_snapshots",
 ]
+
+[default.extend-words]
+Forgetten = "Forgetten"