fix(update): rewrite nupst update for v4 (download install script instead of git pull)

The update command was still using v3 logic (git pull, setup.sh) which
doesn't work for v4 binary distribution.

Now it simply:
1. Downloads install.sh from main branch
2. Runs it (handles download, stop, replace, restart automatically)

This is much simpler and matches how v4 is distributed. No more git,
no more setup.sh, just download the latest binary.

deno.json

@@ -1,6 +1,6 @@
 {
   "name": "@serve.zone/nupst",
-  "version": "4.0.6",
+  "version": "4.0.7",
   "exports": "./mod.ts",
   "tasks": {
     "dev": "deno run --allow-all mod.ts",

ts/cli/service-handler.ts

@@ -129,81 +129,32 @@ export class ServiceHandler {
     try {
       // Check if running as root
       this.checkRootAccess(
-        'This command must be run as root to update NUPST and refresh the systemd service.',
+        'This command must be run as root to update NUPST.',
       );
 
-      const boxWidth = 45;
+      console.log('');
-      logger.logBoxTitle('NUPST Update Process', boxWidth);
+      logger.info('Updating NUPST to latest version...');
-      logger.logBoxLine('Updating NUPST from repository...');
+      console.log('');
-
-      // Determine the installation directory (assuming it's either /opt/nupst or the current directory)
-      const { existsSync } = await import('fs');
-      let installDir = '/opt/nupst';
-
-      if (!existsSync(installDir)) {
-        // If not installed in /opt/nupst, use the current directory
-        const { dirname } = await import('path');
-        installDir = dirname(dirname(process.argv[1])); // Go up two levels from the executable
-        logger.logBoxLine(`Using local installation directory: ${installDir}`);
-      }
 
       try {
-        // 1. Update the repository
+        // Download and run the install script
-        logger.logBoxLine('Pulling latest changes from git repository...');
+        // This handles everything: download binary, stop service, replace, restart
-        execSync(`cd ${installDir} && git fetch origin && git reset --hard origin/main`, {
+        const installUrl = 'https://code.foss.global/serve.zone/nupst/raw/branch/main/install.sh';
-          stdio: 'pipe',
+
+        logger.dim('Downloading install script...');
+        execSync(`curl -sSL ${installUrl} | bash`, {
+          stdio: 'inherit', // Show install script output to user
         });
 
-        // 2. Run the install.sh script
+        console.log('');
-        logger.logBoxLine('Running install.sh to update NUPST...');
+        logger.success('Update completed successfully!');
-        execSync(`cd ${installDir} && bash ./install.sh`, { stdio: 'pipe' });
+        logger.dim('Run "nupst service status" to verify the update.');
-
+        console.log('');
-        // 3. Run the setup.sh script with force flag to update Node.js and dependencies
-        logger.logBoxLine('Running setup.sh to update Node.js and dependencies...');
-        execSync(`cd ${installDir} && bash ./setup.sh --force`, { stdio: 'pipe' });
-
-        // 4. Refresh the systemd service
-        logger.logBoxLine('Refreshing systemd service...');
-
-        // First check if service exists
-        let serviceExists = false;
-        try {
-          const output = execSync('systemctl list-unit-files | grep nupst.service').toString();
-          serviceExists = output.includes('nupst.service');
       } catch (error) {
-          // If grep fails (service not found), serviceExists remains false
+        console.log('');
-          serviceExists = false;
+        logger.error('Update failed');
-        }
+        logger.dim(`${error instanceof Error ? error.message : String(error)}`);
-
+        console.log('');
-        if (serviceExists) {
-          // Stop the service if it's running
-          const isRunning =
-            execSync('systemctl is-active nupst.service || true').toString().trim() === 'active';
-          if (isRunning) {
-            logger.logBoxLine('Stopping nupst service...');
-            execSync('systemctl stop nupst.service');
-          }
-
-          // Reinstall the service
-          logger.logBoxLine('Reinstalling systemd service...');
-          await this.nupst.getSystemd().install();
-
-          // Restart the service if it was running
-          if (isRunning) {
-            logger.logBoxLine('Restarting nupst service...');
-            execSync('systemctl start nupst.service');
-          }
-        } else {
-          logger.logBoxLine('Systemd service not installed, skipping service refresh.');
-          logger.logBoxLine('Run "nupst enable" to install the service.');
-        }
-
-        logger.logBoxLine('Update completed successfully!');
-        logger.logBoxEnd();
-      } catch (error) {
-        logger.logBoxLine('Error during update process:');
-        logger.logBoxLine(`${error instanceof Error ? error.message : String(error)}`);
-        logger.logBoxEnd();
         process.exit(1);
       }
     } catch (error) {