Add lair/containers image-build repo; hermes as first image

Builds container images for lair infra and publishes to git.lair.cafe.
Hermes Agent (NousResearch) is built directly from its upstream Dockerfile
at the latest release tag, published as git.lair.cafe/lair/hermes; the build
is release-triggered (daily API poll) and self-healing (gated on registry
presence, not a committable pin). Includes a draft rootful quadlet for bob
matching the agent-zero/open-webui convention. Convention follows gongfoo.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011D3YeWKpjg5bT488fVanCH

.gitignore

@@ -0,0 +1,5 @@
+# no build artifacts or secrets in this repo
+*.env
+.env*
+*.tar
+*.log