Add Hermes agent, self-host fonts, new blog post

- Add Hermes (Nous Research LLM agent) with Telegram gateway,
  Ansible provisioning, and Makefile targets
- Self-host JetBrains Mono and Spectral fonts (remove Google Fonts)
- Add "An Experiment in Self-Hosting" blog post
- Update CLAUDE.md with high-level server overview

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

infra/hermes/docker-compose.yml

@@ -0,0 +1,23 @@
+services:
+  hermes:
+    image: nousresearch/hermes-agent:latest
+    container_name: hermes
+    restart: unless-stopped
+    command: gateway run
+    logging:
+      driver: json-file
+      options:
+        max-size: "10m"
+        max-file: "3"
+    volumes:
+      - hermes_data:/opt/data
+      - ./config.yaml:/opt/data/config.yaml:ro
+    environment:
+      OPENROUTER_API_KEY: "${OPENROUTER_API_KEY}"
+      TELEGRAM_BOT_TOKEN: "${TELEGRAM_BOT_TOKEN}"
+      TELEGRAM_ALLOWED_USERS: "${TELEGRAM_ALLOWED_USERS}"
+    env_file:
+      - .env
+
+volumes:
+  hermes_data: