fix: remove committed build artifact

Adds discord.py, python-telegram-bot, slack-bolt, and other messaging
platform libraries to the default Hermes derivation. This is required
for Discord/Slack/Telegram channel integration in k3s-deployed agents.

The [all] extras group stopped including messaging on 2026-05-12
(switched to lazy-install), but our Nix-built container images have
no pip available for runtime lazy installation.

Closes #2

.forgejo/workflows/mac-test.yaml

@@ -1,9 +0,0 @@
-name: mac-mini-test
-on:
-  workflow_dispatch: {}
-jobs:
-  hostjob:
-    runs-on: [macos]
-    steps:
-      - run: |
-          echo "running on $(uname -sm) via mac-mini runner"

.forgejo/workflows/smoke.yaml

@@ -1,9 +0,0 @@
-name: runner-smoke
-on:
-  workflow_dispatch: {}
-jobs:
-  smoke:
-    runs-on: [k8s]
-    steps:
-      - run: |
-          echo "hello from $(uname -m) runner"

nix/packages.nix

@@ -23,6 +23,8 @@ in
           pkgs.tzdata
           pkgs.bash
           pkgs.coreutils
+          pkgs.libopus
+          pkgs.opusfile
         ];
         config = {
           Entrypoint = [ "/bin/hermes" "gateway" "run" ];