updates

docs/STORAGE-HYPERDB.md

@@ -18,6 +18,8 @@ Live 1-second samples stay in the **memory ring** and are pushed over protomux-r
 | Query fallback (memory → HyperDB) | ✅ | `MetricStore.query()` |
 | Agent boot upsert node | ✅ | `server/server.js` |
 | RPC: `getDbInfo`, `linkPeer`, `unlinkPeer`, `listPeerLinks` | ✅ | `server/handlers/monitor.js` |
+| Open remote bee by `dbKeyHex` + query | ✅ | `server/db/remote.js` → `source: hyperdb-remote` |
+| Persist `discoveryKeyHex` on peer-link + boot rejoin | ✅ | schema v2 + `rejoinLinkedPeers()` |
 | REST: `GET /api/v3/db` | ✅ | `server/rest/routes.js` |
 | Hyperswarm replicate | ✅ stub | `server/db/replicate.js` (`PEARDATA_SWARM=1`) |
 | Autobase multi-writer parents | ⏳ Phase C | See roadmap |