Initial scaffold: tooling, plan, task briefs

- pnpm 10 workspace + TypeScript strict + ESLint flat + Prettier
- CLAUDE.md as canonical brief
- docs/tasks/ — 22 task briefs broken out by phase for sub-sessions
- docs/decisions/ — ADR scaffold

Implements task 01 (repo-init).

docs/tasks/60-backups.md

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+# 60 — Postgres backups (pg_dump cron)
+
+## Goal
+
+Nightly compressed pg_dump of `famapp-db` (and `authentik-db`) to a host volume, with a retention policy.
+
+## Depends on
+
+- 05
+
+## Scope
+
+- `deploy/backups/` directory committed.
+- Add a `famapp-backup` service to compose: small Alpine container with `postgresql-client` + `cron` + a script that runs `pg_dump -Fc` against both DBs into `/backups/<db>/<YYYY-MM-DD>.dump`.
+- Retention: keep last 14 daily, last 8 weekly, last 6 monthly. Pure shell, no fancy tooling.
+- Document restore procedure in `deploy/backups/README.md`.
+
+## Out of scope
+
+- Off-site replication (Matt's call; he can rsync `/backups` elsewhere).
+- Encryption at rest (handled at the disk layer).
+
+## Acceptance criteria
+
+- [ ] After a day, dump files exist for both DBs.
+- [ ] `restore.sh <dump-file>` script exists and works against a fresh DB.
+- [ ] Retention script keeps the right counts.