fix(cli): print package version

Author: aiirvizionz

bin/moshcode.mjs

@@ -20,6 +20,7 @@ import { locate, tilde } from "../src/pwd.mjs";
 import { createPrd, listPrds, authoringPrompt } from "../src/prd.mjs";
 import { login, loginDevice, whoami, logout } from "../src/auth.mjs";
 import { tui } from "../src/tui.mjs";
+import { moshcodeVersion } from "../src/ui.mjs";
 
 const HERE = path.dirname(fileURLToPath(import.meta.url));
 const EXAMPLE = path.join(HERE, "..", "examples", "alive.mosh");
@@ -171,6 +172,11 @@ async function main() {
   // No args → open the interactive TUI shell (/agents <engine>, etc.).
   if (cmd === undefined) return tui();
 
+  if (cmd === "--version" || cmd === "-v" || cmd === "version") {
+    console.log(moshcodeVersion() || "unknown");
+    return;
+  }
+
   if (cmd === "engines") {
     printEngineStatus();
     return;

test/cli.test.mjs

@@ -1,12 +1,25 @@
 import assert from "node:assert/strict";
 import test from "node:test";
+import { readFileSync } from "node:fs";
+import { spawnSync } from "node:child_process";
+import { fileURLToPath } from "node:url";
 
 import { runMoshcode, cliVerb, runAi } from "../src/cli.mjs";
 import { aiExecArgs, pickAiEngine } from "../src/engines.mjs";
 import { moshVocabulary } from "../src/commands.mjs";
 import { runScript } from "../src/runtime.mjs";
 import { createRegistry } from "../src/registry.mjs";
 
+test("moshcode --version prints the package version", () => {
+  const expected = JSON.parse(readFileSync(new URL("../package.json", import.meta.url), "utf8")).version;
+  const result = spawnSync(process.execPath, [fileURLToPath(new URL("../bin/moshcode.mjs", import.meta.url)), "--version"], {
+    encoding: "utf8",
+  });
+  assert.equal(result.status, 0);
+  assert.equal(result.stdout.trim(), expected);
+  assert.equal(result.stderr, "");
+});
+
 function dryCtx() {
   return { dryRun: true, lines: [], out(l) { this.lines.push(l); } };
 }