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>

AGENTS.md

@@ -0,0 +1,54 @@
+# Working on MangaCircus
+
+Guide for contributors and coding agents. Users who only want to run it: [docs/deployment.md](docs/deployment.md).
+
+## Layout
+
+| Path | What |
+|---|---|
+| `server.js`, `library.js` | Reader: HTTP server, accounts, progress, JSON storage; folder scanner and image-size reader |
+| `chapter-identity.js`, `chapter-dates.js`, `reading-*.js`, `catalog.js`, `backup.js` | Shared modules (chapter keys, chapter dates, reading clock/limits, collections, built-in backup) |
+| `public/` | The web pages: plain HTML, CSS and JavaScript, no build step |
+| `scraper/` | Download queue daemon (`service.js`, `daemon.js`), source adapters and parsers, the publisher that writes the library, metadata lookups |
+| `peering/` | Optional server-to-server sharing (gateway, client, adapter) |
+| `runtime/` | In-container supervisor and configuration |
+| `discovery/`, `greatest/` | Discovery Scout and the Greatest of All Time dashboard |
+| `tools/` | Demo library, health checks, maintenance tools (dry run by default), UI and Compose test drivers |
+| `deploy/` | `circus.sh` operations helper, HTTPS with Caddy |
+| `docs/`, `vision/` | Contracts and guides; design notes for planned features |
+
+## Rules
+
+- **No runtime dependencies.** Node.js built-ins only. Playwright is an optional dev tool for UI tests.
+- **One writer per store.** The reader alone writes `DATA` (users, progress, catalog). The scraper alone
+  writes the library and its queue. Tools that edit `chapter.json` files are dry runs by default and need
+  `--apply --writers-stopped`.
+- **Library writes go through the publisher** (`scraper/lib/publisher.js`): staging folder, validated
+  images, one atomic rename. The folder contract is [docs/scraper-guide.md](docs/scraper-guide.md).
+- **Sources are polite.** Sequential requests, persisted per-host delays, stop on 401/403/429, never bypass
+  access controls ([scraper/AGENT_RUNBOOK.md](scraper/AGENT_RUNBOOK.md)).
+- **No secrets or personal data in the repository**: no `.env`, `.secrets/`, `data/`, libraries, host
+  names, IP addresses or local paths. Tests use disposable fixtures and never a real library or user
+  database.
+- Keep the docs current in the same change: a new file format field goes into
+  [docs/library-format.md](docs/library-format.md), a new setting into the README or
+  [docs/deployment.md](docs/deployment.md), an API change into [docs/architecture.md](docs/architecture.md).
+- Match the surrounding style: small functions, short comments that say why, no framework.
+
+## Tests
+
+```bash
+npm test                         # reader, scraper, runtime and peering suites (node --test)
+```
+
+Without Node on the machine, run them in Docker (the peering test needs `openssl`, present in `node:24`):
+
+```bash
+docker run --rm -v "$PWD:/app" -w /app node:24 npm test
+```
+
+Browser and Compose acceptance tests (Playwright, disposable data, never the live stack):
+`npm run test:ui`, `npm run test:discovery-ui`, `npm run test:direction-ui`, `npm run test:peer-ab`.
+
+Try changes against demo data: `node tools/make-dummy.js library && npm run start:all`, or
+`docker compose -f docker-compose.yml -f compose.dev.yml up -d --build` (mounts the editable source).