fix(server): use unredacted databaseBackup in full health response

The full-details (authenticated board) health response should return
the unredacted backup health with lastBackup, lastFailure, and real
warning messages. Only the redacted (non-board) response uses the
sanitized version.

Author: claude

server/src/routes/health.ts

@@ -332,8 +332,8 @@ export function healthRoutes(
         companyDeletionEnabled: opts.companyDeletionEnabled,
       },
       serverInfo,
-      ...(databaseBackup ? { databaseBackup: redactedDatabaseBackupHealth(databaseBackup) } : {}),
-      ...(warnings ? { warnings: warnings.map(redactedDatabaseBackupWarning) } : {}),
+      ...(databaseBackup ? { databaseBackup } : {}),
+      ...(warnings ? { warnings } : {}),
       ...(devServer ? { devServer } : {}),
       ...(workspaceReadiness ? { workspace: workspaceReadiness } : {}),
       ...(cloud ? { cloud } : {}),