feat: rebuild Monitor page for Proxmox cluster architecture + activate WP monitoring

- Rewrite Monitor.tsx with hierarchical cluster view (host + 4 VMs grid)
- Add ProgressBar inverted prop for container health (100% = green)
- Add per-site WordPress updates breakdown in WP Updates section
- Fix wpMonitorSchema validation to accept plugin data (passthrough, flexible types)
- All 8 WordPress sites now sending monitoring data via descomplicar-monitor plugin

api/middleware/validation.ts

@@ -63,20 +63,22 @@ export const wpMonitorSchema = {
     site_url: z.string().url('Invalid site_url format'),
     site_name: z.string().optional(),
     health: z.object({
-      status: z.enum(['good', 'recommended', 'critical']).optional()
-    }).optional(),
+      status: z.string().optional()
+    }).passthrough().optional(),
     updates: z.object({
       counts: z.object({
         total: z.number().int().nonnegative()
-      }).optional(),
-      core: z.array(z.any()).optional()
-    }).optional(),
+      }).passthrough().optional(),
+      core: z.any().optional(),
+      plugins: z.any().optional(),
+      themes: z.any().optional()
+    }).passthrough().optional(),
     system: z.object({
       debug_mode: z.boolean().optional()
-    }).optional(),
+    }).passthrough().optional(),
     database: z.object({
       size_mb: z.number().nonnegative().optional()
-    }).optional()
+    }).passthrough().optional()
   }).passthrough() // Permite campos adicionais
 }