Prepare the repository for a public release

- docs/deployment.md: step-by-step Docker deployment for anyone (setup,
  configuration, LAN/HTTPS/VPN access, adding manga, operation, prebuilt
  images, backups, peering, troubleshooting, rules for agents).
- deploy/circus.sh: host helper without Node (status, up/down with queue
  pause, logs, pause/resume, update, rescan, restore-test); deploy/compose.https.yml
  + Caddyfile for automatic HTTPS.
- README rewritten for public readers (Docker first, sources/copyright note,
  docs index); AGENTS.md + CLAUDE.md for contributors and coding agents.
- Removed notes about one particular installation (Windows host, handoffs,
  audits of a private library, benchmarks with local paths, wishlist, reading
  map) and the unused ops/proxmox templates; generalized remaining mentions of
  hosts, VPN and Windows-only commands.
- Defaults: TZ and reading time zone UTC; .gitattributes keeps shell/YAML LF.
- Personal agent coordination files are git-ignored (CLAUDE.local.md,
  .claude/skills/manga-org/).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

deploy/compose.https.yml

@@ -0,0 +1,27 @@
+# HTTPS in front of the reader with Caddy and automatic Let's Encrypt certificates.
+# Needs a DNS name for this host (MANGACIRCUS_DOMAIN in .env) and ports 80 and 443 reachable
+# from the internet. Use it with the main file, e.g. in .env:
+#   COMPOSE_FILE=docker-compose.yml:deploy/compose.https.yml
+# Already running a reverse proxy? Skip this file and see docs/deployment.md, "Your own proxy".
+services:
+  reader:
+    ports: !reset []
+    environment:
+      COOKIE_SECURE: "1"
+
+  caddy:
+    image: caddy:2.8.4-alpine
+    restart: unless-stopped
+    ports: ["80:80", "443:443", "443:443/udp"]
+    environment:
+      MANGACIRCUS_DOMAIN: ${MANGACIRCUS_DOMAIN:?Set MANGACIRCUS_DOMAIN in .env}
+    volumes:
+      - ./deploy/Caddyfile:/etc/caddy/Caddyfile:ro
+      - caddy-data:/data
+      - caddy-config:/config
+    networks: [egress]
+    depends_on: [reader]
+
+volumes:
+  caddy-data: {}
+  caddy-config: {}