Refactor syscall modules to use async/await patterns

- Updated `DisplaySyscall` to use `tokio::io::AsyncWriteExt` for asynchronous text output.
- Refactored `FsSyscall` to read files asynchronously with offset and length handling.
- Modified `MemorySyscall` to use `tokio::task::spawn_blocking` for database operations, allowing async access to SQLite.
- Enhanced `NetworkSyscall` to utilize `reqwest` for HTTP requests, replacing the previous `curl` command execution.
- Improved `ProcessSyscall` to manage subprocesses with async tasks for stdin, stdout, and stderr handling.
- Updated `TimerSyscall` to simplify timer management.
- Adjusted plugin implementations for better async support and error handling.
- Added `tokio-stream` and `tracing-subscriber` dependencies to `Cargo.toml` for enhanced async stream handling and logging.

plugins/hermes/src/main.rs

@@ -44,7 +44,9 @@ impl PluginBridge for HermesPlugin {
         &self,
         _req: Request<PluginInfo>,
     ) -> std::result::Result<Response<RegisterResponse>, Status> {
-        Err(Status::unimplemented("hermes plugin is not an agentsd bridge"))
+        Err(Status::unimplemented(
+            "hermes plugin is not an agentsd bridge",
+        ))
     }
 
     async fn call(
@@ -62,13 +64,16 @@ impl PluginBridge for HermesPlugin {
         Ok(Response::new(response))
     }
 
-    type StreamCallStream = tokio_stream::wrappers::ReceiverStream<std::result::Result<CallResponse, Status>>;
+    type StreamCallStream =
+        tokio_stream::wrappers::ReceiverStream<std::result::Result<CallResponse, Status>>;
 
     async fn stream_call(
         &self,
         _req: Request<CallRequest>,
     ) -> std::result::Result<Response<Self::StreamCallStream>, Status> {
-        Err(Status::unimplemented("stream_call is not implemented for hermes"))
+        Err(Status::unimplemented(
+            "stream_call is not implemented for hermes",
+        ))
     }
 
     async fn heartbeat(
@@ -110,7 +115,7 @@ async fn main() -> Result<()> {
     println!("Hermes PluginBridge server listening on {}", listen_addr);
 
     Server::builder()
-        .add_service(PluginBridgeServer::new(HermesPlugin::default()))
+        .add_service(PluginBridgeServer::new(HermesPlugin))
         .serve_with_incoming(incoming)
         .await?;
     Ok(())