Use database fleet registry and gate RCON polling on container readiness

src/lib/server/fleet/drift.ts

@@ -14,7 +14,7 @@ import {
 import { getBaselineForScope, getVersion } from './scripts.js';
 import { getPromotedServerConfig, getServerMapConfig, MAP_CONFIG_FILE } from './server-config.js';
 import { T5_ZOMBIE_MAPS } from './map-aliases.js';
-import { allServers, getServer, listServers } from './servers.js';
+import { serverDirectories, getServer, listServers } from './servers.js';
 import { promotedArtifacts } from './promoted-artifacts.js';
 
 // Destinations drift scans, in a stable order so the UI shows scripts first.
@@ -228,7 +228,7 @@ function composeExpectedCfg(
 export async function scanFleetDrift(): Promise<DriftEntry[]> {
     const servers = listServers().map((s) => s.name);
     const registered = new Set(servers);
-    const allDirs = new Set(await allServers());
+    const allDirs = new Set(await serverDirectories());
     // Only touch server dirs that are both registered AND present on disk.
     const eligible = servers.filter((n) => registered.has(n) && allDirs.has(n));
     const out: DriftEntry[] = [];