Fix retention query performance and cleanup scheduling

src/lib/server/pipeline/sweep.ts

@@ -1,8 +1,6 @@
-import { pruneHistory } from '../retention.js';
 import { db } from '../db/index.js';
 import { emit } from './bus.js';
 import { requestRestart } from '../provisioning/index.js';
-import { pruneHostObservations } from '../hosts/index.js';
 
 interface PendingRow {
     deployment_id: string; server: string; restart_state: string;
@@ -20,7 +18,6 @@ export function sweep(): Promise<SweepResult> {
     return sweepInFlight;
 }
 async function runSweep(): Promise<SweepResult> {
-    pruneHostObservations();
     const pending = db().prepare(`SELECT ds.* FROM deployment_servers ds JOIN deployments d ON d.id = ds.deployment_id
         WHERE ds.server_deleted_at IS NULL AND ds.restart_state IN ('pending','failed')
         AND NOT EXISTS (SELECT 1 FROM retention_controls c WHERE c.category='campaign' AND c.record_id=ds.deployment_id AND c.resolved_at IS NOT NULL) ORDER BY d.started_at, d.id, ds.server`).all() as PendingRow[];
@@ -47,7 +44,6 @@ async function runSweep(): Promise<SweepResult> {
     }
     db().prepare(`UPDATE deployments SET finished_at = ? WHERE finished_at IS NULL AND NOT EXISTS (
         SELECT 1 FROM deployment_servers WHERE deployment_id = deployments.id AND server_deleted_at IS NULL AND restart_state IN ('pending','failed','held'))`).run(nowIso());
-    pruneHistory('campaign');
     emit({ type: 'sweep-tick', frozen: false });
     return result;
 }