move dashboardPort, claudeCodePackage and extraResourceAttributes to deploy.hive-controller

These three are per-host choices that hive-c0re reads and renders into
its agents, so they belong under the hive controller's deploy namespace
rather than swarm-wide:

- c0re.dashboardPort -> deploy.hive-controller.dashboardPort
- c0re.claudeCodePackage -> deploy.hive-controller.claudeCodePackage
  (the claude-login and review-classifier containers on the same host
  keep following it)
- otel.extraResourceAttributes -> deploy.hive-controller.otel.extraResourceAttributes

The old paths stay as mkRenamedOptionModule aliases, now in deploy.nix
with the namespace's other renames. github.enable and the collector port
stay swarm-wide.

nix/agent-modules/default.nix

@@ -96,7 +96,7 @@ in
       nixpkgs.
 
       Set by the generated meta flake when the operator sets
-      `services.hyperhive.swarm.claudeCodePackage` host-side, so a swarm
+      `services.hyperhive.deploy.hive-controller.claudeCodePackage` host-side, so a hive
       can run a claude built from a *different* nixpkgs than the one
       its agents evaluate against — a release channel can trail
       unstable by weeks on this one package. It arrives as a path and
@@ -109,7 +109,7 @@ in
       there is only ever one claude in the container. Note that neither
       the symlink nor anything else in the container's closure *refers*
       to the target — keeping it alive is the host's job, see
-      `services.hyperhive.swarm.claudeCodePackage`.
+      `services.hyperhive.deploy.hive-controller.claudeCodePackage`.
     '';
   };
 
@@ -255,7 +255,7 @@ in
           # The symlink registers no store reference — the target isn't
           # among this derivation's inputs, so nothing here keeps the
           # binary alive. That is deliberate and it is the host's job:
-          # see `services.hyperhive.swarm.claudeCodePackage`.
+          # see `services.hyperhive.deploy.hive-controller.claudeCodePackage`.
           pkgs.runCommandLocal "claude-code-pinned" { } ''
             mkdir -p "$out/bin"
             ln -s ${config.services.hyperhive.agent.claudeCodePath}/bin/claude "$out/bin/claude"

nix/agent-modules/otel.nix

@@ -125,7 +125,8 @@ in
         Extra comma-separated entries appended to
         `OTEL_RESOURCE_ATTRIBUTES` after the built-in
         `service.name` / `agent` / `swarm` labels.
-        Host-driven via `services.hyperhive.swarm.hiveOtel.extraResourceAttributes`.
+        Host-driven via
+        `services.hyperhive.deploy.hive-controller.otel.extraResourceAttributes`.
       '';
     };