- notificationService: `module.exports._push = {...}` was set BEFORE the final
`module.exports = {...}`, which wiped it, so routes/notifications.js got
`_push || {}` → sendTestPush undefined → POST /api/notifications/test-push
always threw "Push service not initialised". Scheduled reminders were fine
(in-scope calls). Moved the _push assignment after the reassignment.
- add tests/notificationDelivery.test.js (7 tests: ntfy/gotify/discord payloads,
dispatch, error handling, unknown channel, no token leak in the body)
- docs: archive QA-B10-01
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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