fix: add pylon relay fallback to dashboard status endpoint

The dashboard uses /api/v1/services/status (not /api/health/services)
for live status cards. This endpoint was missing pylon relay fallback,
so services unreachable from the Docker container showed as OFF even
when the pylon was running. Also adds Windows VBS startup wrapper for
pylon persistence across reboots.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

dashcaddy-api/routes/services.js

@@ -65,6 +65,25 @@ module.exports = function(ctx) {
     });
   }
 
+  async function probeViaPylon(targetUrl) {
+    const pylonConfig = ctx.siteConfig?.pylon;
+    if (!pylonConfig?.url) return null;
+    try {
+      const probeUrl = `${pylonConfig.url}/probe?url=${encodeURIComponent(targetUrl)}`;
+      const headers = {};
+      if (pylonConfig.key) headers['x-pylon-key'] = pylonConfig.key;
+      const controller = new AbortController();
+      const timeout = setTimeout(() => controller.abort(), 12000);
+      const response = await ctx.fetchT(probeUrl, { method: 'GET', signal: controller.signal, headers });
+      clearTimeout(timeout);
+      if (!response.ok) return null;
+      const data = await response.json();
+      return data;
+    } catch (_) {
+      return null;
+    }
+  }
+
   async function probeServiceStatus(id, service) {
     const startedAt = process.hrtime.bigint();
     let url = resolveProbeUrl(id, service);
@@ -92,6 +111,22 @@ module.exports = function(ctx) {
       }
     }
 
+    // Pylon relay fallback — if direct probes failed, try through the pylon
+    if (error && ctx.siteConfig?.pylon) {
+      const pylonResult = await probeViaPylon(url);
+      if (pylonResult && pylonResult.status) {
+        const responseTime = Number((process.hrtime.bigint() - startedAt) / 1000000n);
+        return {
+          id,
+          isUp: pylonResult.status === 'healthy',
+          statusCode: pylonResult.statusCode || 0,
+          responseTime,
+          url,
+          via: 'pylon'
+        };
+      }
+    }
+
     const responseTime = Number((process.hrtime.bigint() - startedAt) / 1000000n);
     if (error) {
       return {