add root dockerfile that contains binaries for all services

crates/inference-engine/src/main.rs

@@ -0,0 +1,23 @@
+use inference_engine::{create_router, init_tracing, get_server_config, AppState};
+use tokio::net::TcpListener;
+use tracing::info;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    init_tracing();
+    
+    let app_state = AppState::default();
+    let app = create_router(app_state);
+    
+    let (server_host, server_port, server_address) = get_server_config();
+    let listener = TcpListener::bind(&server_address).await?;
+    
+    info!("Inference Engine server starting on http://{}", server_address);
+    info!("Available endpoints:");
+    info!("  POST /v1/chat/completions - OpenAI-compatible chat completions");
+    info!("  GET  /v1/models         - List available models");
+    
+    axum::serve(listener, app).await?;
+    
+    Ok(())
+}