chore: still tweaking plan

doc/notification-system-implementation-plan.md

@@ -4,14 +4,35 @@
 **Date**: 2025-01-27T15:00Z (UTC)  
 **Status**: 🚀 **ACTIVE** - Surgical PR implementation for Capacitor platforms
 
+## Purpose
+
+We **will deliver** 1..M daily local notifications with content fetched beforehand so they **will display offline**. We **will support** online-first (API→DB→Schedule) with offline-first fallback. New v1 ships in-app; New v2 extracts to a native Capacitor plugin with the same API.
+
 ## What we'll ship (v1 in-app)
 
-- Multi-daily **one-shot local notifications** (rolling window)
+- **Multi-daily one-shot local notifications** (rolling window; today + tomorrow within iOS pending limits ~64)
-- **Online-first** (ETag, 10–15s timeout) with **offline-first** fallback
+- **Online-first** content fetch (**ETag**, 10–15s timeout) with **offline-first** fallback and **TTL** handling ("(cached)" or skip)
-- **SQLite** persistence + **14-day** retention
+- **SQLite persistence** (contents, deliveries, config) with **14-day retention**
-- **Templating**: `{title, body}` with `{{var}}`
+- **Templating**: `{title, body}` with `{{var}}` substitution **before** scheduling
-- **Event queue**: delivery/error/heartbeat (drained on foreground)
+- **Event queue** in SQLite: `delivery`, `error`, `heartbeat`; **drain on foreground**
-- Same TS API that we can swap to native (v2) later
+- **Resilience hooks**: re-arm on **app resume**, and when **timezone/offset** changes
+
+---
+
+## New v2 (Plugin) — What It Adds
+
+- **Native schedulers** (WorkManager+AlarmManager / BGTask+UNUserNotificationCenter) incl. exact/inexact handling
+- **Native HTTP** + **native SQLite** for reliability/perf
+- **Server-assist (silent push)** to wake at T-lead and prefetch
+- **Same TS API**, adapters swapped
+
+---
+
+## Feature Flags
+
+- `scheduler: 'capacitor'|'native'`
+- `mode: 'online-first'|'offline-first'|'auto'`
+- `prefetchLeadMinutes`, `ttlSeconds`
 
 ---
 
@@ -35,6 +56,24 @@
 
 ---
 
+## Changes (surgical)
+/src/services/notifs/
+  types.ts
+  NotificationOrchestrator.ts
+  adapters/
+    DataStoreSqlite.ts
+    SchedulerCapacitor.ts
+    CallbacksHttp.ts
+/migrations/
+  00XX_notifs.sql
+/sw_scripts/
+  notification-click.js   # (or merge into sw_scripts-combined.js)
+/app/bootstrap/
+  notifications.ts        # init + feature flags
+```
+
+---
+
 ## Changes (surgical)
 
 ### 1) Dependencies
@@ -587,11 +626,11 @@ self.addEventListener('notificationclick', (event) => {
 
 ## Acceptance (v1)
 
-- Locals fire at configured slots with app **killed**
+- Local notifications **fire at configured slots with the app killed** (iOS/Android)
-- Online-first w/ **ETag** + **timeout**; falls back to offline-first (TTL respected)
+- **Online-first** → 304/ETag respected; **offline-first** fallback; **TTL** policy respected
-- DB retains 14 days; retention job prunes
+- **14-day retention** job prunes contents & deliveries
-- Foreground drains queued events
+- **TZ/DST** change triggers **reschedule()**; rolling window adheres to iOS pending cap
-- One-line adapter swap path ready for v2
+- **Feature flags** present: `scheduler: 'capacitor'|'native'`, `mode: 'online-first'|'offline-first'|'auto'`
 
 ---
 
@@ -601,3 +640,5 @@ self.addEventListener('notificationclick', (event) => {
 - **Web Fallback**: Web platform will use existing service worker + push notifications
 - **Electron**: Will need separate implementation using native notification APIs
 - **Feature Flags**: Can be toggled per platform in bootstrap configuration
+- **Android UX**: Settings deep-link to grant exact-alarm special access on API 31+
+- **DST/TZ Guardrail**: On app resume, if offset/TZ changed → `reschedule()` and re-arm today's slots