fix: seed now merges attributes instead of overwriting on upsert, add enrollment attrs to seed

internal/db/seed.go

@@ -123,8 +123,10 @@ func IngestInventorySeed(ctx context.Context, tx pgx.Tx, data map[string]any) (*
 		_, err = tx.Exec(ctx,
 			`INSERT INTO entities (id, slug, type, name, state, attributes, version, created_at, updated_at)
 			 VALUES ($1, $2, $3, $4, $5, $6, 1, now(), now())
-			 ON CONFLICT (slug) DO UPDATE SET type = $3, name = $4, state = $5,
-			   attributes = $6, updated_at = now()`,
+			 ON CONFLICT (slug) DO UPDATE SET
+			   type = EXCLUDED.type, name = EXCLUDED.name,
+			   attributes = entities.attributes || EXCLUDED.attributes,
+			   updated_at = now()`,
 			entityID, slug, typeName, name, nullableStr(state), string(attrsBytes))
 		if err != nil {
 			return nil, fmt.Errorf("entity %s: %w", slug, err)

seeds/inventory.yaml

@@ -96,7 +96,10 @@ entities:
       lan_ip: 192.168.178.182
       mesh: {netbird: {fqdn: mac-mini-234-17.netbird.selfhosted}}
       age_pubkey: age169104ee1a9e1577d493820830560197f0adf56bf8f1c369d57c152c03f9437ae
-      note: only macOS in fleet; future Oikos OS Docker host
+      note: only macOS in fleet; Oikos Docker host. Enrolled 2026-07-08.
+      enrolled_at: "2026-07-08T09:49:03Z"
+      mesh_ip: 192.168.178.182
+      hostname: mac-mini
   - slug: "ws:republic-laptop"
     type: workstation
     name: republic-laptop