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).

.env.example

@@ -0,0 +1,25 @@
+# Public app URL (used for OIDC redirect URIs, share links, etc.)
+NEXT_PUBLIC_APP_URL=https://fam.ginnoir.com
+
+# Postgres
+DATABASE_URL=postgres://famapp:famapp@localhost:5432/famapp
+
+# Auth.js
+AUTH_SECRET=replace-with-openssl-rand-base64-32
+
+# OIDC (Authentik)
+AUTH_OIDC_ISSUER=https://auth.ginnoir.com/application/o/famapp/
+AUTH_OIDC_CLIENT_ID=replace-me
+AUTH_OIDC_CLIENT_SECRET=replace-me
+
+# Web Push (generate with: pnpm vapid:generate)
+VAPID_PUBLIC_KEY=
+VAPID_PRIVATE_KEY=
+VAPID_SUBJECT=mailto:you@example.com
+
+# ntfy (optional fallback channel; leave blank to disable)
+NTFY_URL=
+NTFY_TOPIC=
+
+# Logging
+LOG_LEVEL=info