deploy: two comments still say a package stays under swarm.*

Both are regressions from earlier commits in this same slice, not
pre-existing drift:

- the nats comment listed "the responder package" among what stays
  under `swarm.nats`; `authPackage` moved in a17286c4
- the matrix comment listed "its package" among what `swarm.matrix`
  keeps; both matrix packages moved in 1b2da54c

Each move edited the prose in the module that declares the option —
`swarm-nats.nix` carries the same "responder package" sentence and it
was corrected there — but deploy.nix keeps its own one-paragraph
description of every service, next to that service's shims. It is a
per-module prose site that does not live in the module, so a sweep
scoped to the module cannot reach it.

The counts in both comments were checked and are correct as written:
the matrix block has six shims and the nats block five. The `*.package`
entries append to the separate block further down, which already has a
comment saying what it is, so no count moved. Each fix is one clause.

nix/host-modules/deploy.nix

@@ -164,9 +164,10 @@ in
     )
 
     # The queue's callout identity. What stays under `swarm.nats` is what the
-    # queue IS to every hive — the ports it answers on, the client id it is
-    # registered under, the responder package; these five are what the host
-    # running it decides.
+    # queue IS to every hive — the ports it answers on and the client id it is
+    # registered under; these five are what the host running it decides. The
+    # responder package is one of them now, further down with the other
+    # `*.package` moves.
     #
     # ⚠️ The two PUBLIC keys move with their seeds. A public key looks
     # swarm-wide, and the user key genuinely is published to every client that
@@ -227,9 +228,10 @@ in
     )
 
     # The homeserver, split the same way. `swarm.matrix` keeps what it IS to
-    # every hive — its package, the name it answers to, the ports and URLs it
-    # is reached on, the client id it is registered under. These six are what
-    # the host running it decides. ⚠️ `enable` is NOT here: it was renamed
+    # every hive — the name it answers to, the ports and URLs it is reached
+    # on, the client id it is registered under. These six are what the host
+    # running it decides; its two packages moved as well, further down with
+    # the other `*.package` moves. ⚠️ `enable` is NOT here: it was renamed
     # earlier and its shim lives in ./hive-matrix.nix, so that file is the one
     # to check before assuming this table is the whole matrix story.
     (lib.mkRenamedOptionModule