feat: consolidate utility functions into P2NS Plugin SDK

- Centralized common formatting, DOM, and status utilities in `includes/plugins/sdk.js`
- Created `sdk.utils.format`, `sdk.utils.dom`, and `sdk.utils.status` namespaces
- Refactored `domain.consensus` and `peer.visualize` plugins to use the global SDK
- Updated `plugin-handler` to serve SDK utilities globally via `/sdk-utils.js`
- Enhanced SDK validation by delegating to the core validation infrastructure
- Fixed bugs in metric rendering and missing frontend utility functions

includes/admin/admin-backend/routes/backups.js

@@ -2,6 +2,7 @@ const { createBackup, listBackups, restoreBackup, cleanupOldBackups } = require(
 const { logError } = require('../../../infrastructure/logger');
 const { trackRequest, trackRequestWithTiming } = require('../../../maintenance/metrics');
 const { createErrorResponse } = require('../../../infrastructure/error_handler');
+const sdk = require('../../../plugins/sdk');
 const fs = require('fs').promises;
 const path = require('path');
 
@@ -20,7 +21,7 @@ async function handleBackupsRoutes(req, res) {
         return {
           ...backup,
           size: backup.size || 0,
-          sizeFormatted: formatBytes(backup.size || 0)
+          sizeFormatted: sdk.utils.format.formatBytes(backup.size || 0)
         };
       });
       
@@ -218,14 +219,14 @@ async function handleBackupsRoutes(req, res) {
                 return {
                   name: fileName,
                   size: stats.size,
-                  sizeFormatted: formatBytes(stats.size),
+                  sizeFormatted: sdk.utils.format.formatBytes(stats.size),
                   modified: stats.mtime.toISOString()
                 };
               } catch (err) {
                 return {
                   name: fileName,
                   size: 0,
-                  sizeFormatted: '0 B',
+                  sizeFormatted: '0 Bytes',
                   modified: null
                 };
               }
@@ -264,13 +265,5 @@ async function handleBackupsRoutes(req, res) {
   return false;
 }
 
-function formatBytes(bytes) {
-  if (bytes === 0) return '0 B';
-  const k = 1024;
-  const sizes = ['B', 'KB', 'MB', 'GB'];
-  const i = Math.floor(Math.log(bytes) / Math.log(k));
-  return Math.round(bytes / Math.pow(k, i) * 100) / 100 + ' ' + sizes[i];
-}
-
 module.exports = { handleBackupsRoutes };
 

includes/admin/admin-backend/routes/settings.js

@@ -565,10 +565,12 @@ async function handleSettingsRoutes(req, res) {
       }));
 
       // Trigger graceful shutdown after sending response
+      // Add a longer delay to ensure storage cleanup is complete and state is reset
       setTimeout(() => {
         logInfo('Admin', 'Initiating graceful shutdown after DNS storage cleanup...');
+        logInfo('Admin', '🔄 SYSTEM IS SHUTTING DOWN - Storage has been cleaned and will reinitialize on restart');
         process.emit('SIGTERM');
-      }, 1000); // Give time for response to be sent
+      }, 3000); // Give more time for response to be sent and cleanup to complete
     } catch (err) {
       logError('Admin', `Failed to clean DNS storage: ${err.message}`);
       res.writeHead(500, { 'Content-Type': 'application/json' });