Move CLI to apps/cli

apps/cli/src/commands/encode.command.ts

@@ -0,0 +1,16 @@
+import { Response } from "jslib-node/cli/models/response";
+import { StringResponse } from "jslib-node/cli/models/response/stringResponse";
+
+import { CliUtils } from "../utils";
+
+export class EncodeCommand {
+  async run(): Promise<Response> {
+    if (process.stdin.isTTY) {
+      return Response.badRequest("No stdin was piped in.");
+    }
+    const input = await CliUtils.readStdin();
+    const b64 = Buffer.from(input, "utf8").toString("base64");
+    const res = new StringResponse(b64);
+    return Response.success(res);
+  }
+}