feat: initial webssh tooling

app/server/agent/dispatcher.ts

@@ -0,0 +1,36 @@
+import type { Writable } from 'node:stream';
+import { decode, encode } from 'cbor2';
+
+interface Command {
+	op: string;
+	payload: unknown;
+}
+
+interface SSHConnectCommand extends Command {
+	op: 'ssh_conn';
+	payload: {
+		sessionId: string;
+		username: string;
+		hostname: string;
+		port: number;
+	};
+}
+
+type AgentCommand = SSHConnectCommand;
+
+export async function dispatchCommand(
+	dispatcher: Writable,
+	command: AgentCommand,
+) {
+	return new Promise<void>((resolve, reject) => {
+		const encodedCommand = Buffer.concat([encode(command), Buffer.from('\n')]);
+		dispatcher.write(encodedCommand, (err) => {
+			console.log('Command dispatched:', command, err);
+			if (err) {
+				reject(err);
+			} else {
+				resolve();
+			}
+		});
+	});
+}