Initialize repo and add session changes (2025-09-08)

docs/prp/06-tenant-admin-pwa.md

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+# 06 — Tenant Admin PWA (Store-Ready)
+
+Packaging
+- Android: Trusted Web Activity (TWA) bound to `admin.<domain>`; fallback Capacitor if native plugins needed.
+- iOS: Capacitor wrapper with push notifications and secure storage.
+- Installable PWA (A2HS) with offline and background sync.
+
+Auth & Tenancy
+- OAuth2 Authorization Code + PKCE; refresh tokens; secure storage (Keychain/Keystore).
+- Tokens carry `tenant_id` and roles; backend enforces scoping.
+
+Capabilities
+- Manage events, galleries, members, settings, legal pages, purchases.
+- Notifications: Web Push (Android TWA) and Capacitor push (iOS).
+- Conflict handling: ETag/If-Match; audit changes.
+
+Distribution & CI
+- Play: assetlinks.json at `/.well-known/assetlinks.json`.
+- App Store: fastlane lanes; privacy manifests.
+- Version alignment with backend; feature flags synced on login.
+
+See also: docs/adr/ADR-0006-tenant-admin-pwa.md