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>

Dockerfile

@@ -12,7 +12,7 @@ COPY scraper ./scraper
 COPY peering ./peering
 COPY runtime ./runtime
 RUN mkdir -p /library /data && chown node:node /data /library
-ENV PORT=8080 LIBRARY=/library DATA=/data TZ=Europe/Berlin
+ENV PORT=8080 LIBRARY=/library DATA=/data TZ=UTC
 EXPOSE 8080
 USER node
 HEALTHCHECK --interval=30s --timeout=5s --start-period=60s CMD node tools/healthcheck.js reader