Add 'update' command to upgrade routstrd and cocod globally

package.json

@@ -1,6 +1,6 @@
 {
   "name": "routstrd",
-  "version": "0.3.5",
+  "version": "0.3.6",
   "module": "src/index.ts",
   "type": "module",
   "private": false,

src/cli.ts

@@ -235,6 +235,37 @@ program
   .description("Routstr daemon - Manage routstr processes")
   .version(packageJson.version, "--version", "output the version number");
 
+program
+  .command("update")
+  .description("Update routstrd and cocod to the latest versions")
+  .action(async () => {
+    console.log("Updating routstrd...");
+    const routstrdProc = Bun.spawn(["bun", "install", "-g", "routstrd"], {
+      stdout: "inherit",
+      stderr: "inherit",
+    });
+    const routstrdCode = await routstrdProc.exited;
+    if (routstrdCode !== 0) {
+      console.error("Failed to update routstrd.");
+      process.exit(1);
+    }
+    console.log("routstrd updated successfully.\n");
+
+    console.log("Updating cocod...");
+    const cocodProc = Bun.spawn(["bun", "install", "-g", "@routstr/cocod"], {
+      stdout: "inherit",
+      stderr: "inherit",
+    });
+    const cocodCode = await cocodProc.exited;
+    if (cocodCode !== 0) {
+      console.error("Failed to update cocod.");
+      process.exit(1);
+    }
+    console.log("cocod updated successfully.\n");
+
+    console.log("Both routstrd and cocod have been updated!");
+  });
+
 program
   .command("refund")
   .description("Refund pending tokens and API keys to a specified mint")