Merge branch 'perf/local-dbupd' into perf/local-opt

server/index.js

@@ -500,11 +500,17 @@ function startBackgroundServices() {
     .catch(() => {});
 
   // Hourly DB upkeep: a non-blocking checkpoint (the WAL then shrinks to
-  // journal_size_limit) and PRAGMA optimize. Off with DASHBOARD_DB_MAINTAIN_MS=0.
+  // journal_size_limit), PRAGMA optimize, the opt-in retention
+  // (AGENTHUB_RETENTION_DAYS, off by default) and a bounded incremental_vacuum
+  // (server/lib/db-retention.js). Off with DASHBOARD_DB_MAINTAIN_MS=0.
   {
     const every = Number(process.env.DASHBOARD_DB_MAINTAIN_MS ?? 60 * 60 * 1000);
     if (every > 0) {
-      const t = setInterval(() => require("./db").maintainDatabase(), every);
+      const t = setInterval(() => {
+        require("./lib/db-retention")
+          .runScheduledMaintenance()
+          .catch(() => {});
+      }, every);
       if (t.unref) t.unref();
     }
   }