fix(core): fix secrets scan upserts, connection health checks, and frontend improvements

- Add upsert pattern to SecretsScanService to prevent duplicate key errors on repeated scans
- Auto-test connection health on startup so status reflects reality
- Fix Actions view to read identity from appstate instead of broken localStorage hack
- Fetch both project and group secrets in parallel, add "All Scopes" filter to Secrets view
- Enable noCache on UtilityWebsiteServer to prevent stale browser cache

ts/opsserver/classes.opsserver.ts

@@ -32,6 +32,7 @@ export class OpsServer {
       domain: 'localhost',
       feedMetadata: undefined,
       bundledContent: bundledFiles,
+      noCache: true,
       addCustomRoutes: async (typedserver) => {
         this.webhookHandler.registerRoutes(typedserver);
       },