feat: Implement JSON-based type-erased action invocation

- Add process_json method to ActionPool for type-agnostic calls using JSON serialization
- Extend ActionContext with action_name and action_args fields and setter methods
- Update action_gen macro to use process_json instead of typed process method
- Implement remote action invocation framework in client_registry and action_service
- Add protocol definitions for remote action communication
- Enable flexible action execution without explicit type specifications

1 files changed, 7 insertions, 0 deletions

diff --git a/crates/vcs_actions/src/connection/protocol.rs b/crates/vcs_actions/src/connection/protocol.rs
new file mode 100644
index 0000000..2cebe79
--- /dev/null
+++ b/crates/vcs_actions/src/connection/protocol.rs
@@ -0,0 +1,7 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Default, Clone, Serialize, Deserialize)]
+pub struct RemoteActionInvoke {
+    pub action_name: String,
+    pub action_args_json: String,
+}