docs: nest config examples and use neutral swarm/hive names

Closes #6146

docs/1-getting-started/nixos.md

@@ -68,11 +68,17 @@ The smallest working config, as in the README's
 
 ```nix
 services.hyperhive = {
-  deploy.singleHostSwarm = true;
-  deploy.hive-controller.enable = true;
-  swarm.domain = "hive.example";
-  deploy.hive-controller.hiveName = "pr1ma";
-  swarm.hives.pr1ma = { };
+  swarm = {
+    domain = "myswarm.example";
+    hives.firsthive = { };
+  };
+  deploy = {
+    singleHostSwarm = true;
+    hive-controller = {
+      enable = true;
+      hiveName = "firsthive";
+    };
+  };
 };
 ```
 

docs/1-getting-started/setup.md

@@ -119,7 +119,7 @@ an agent's config arrive as PRs you merge. → [`2-handbook/agent-lifecycle/agen
 To create an agent yourself instead, use the swarm UI, or:
 
 ```bash
-swarmctl agent create iris --hive pr1ma
+swarmctl agent create iris --hive firsthive
 ```
 
 The controller provisions iris's identity, forge user and config repo