feat: Jellyfin/Plex auto-import via watch queue

Webhook ingestion from media servers — movies land in a pending
watch queue, user rates and confirms to create diary entries.

- domain: WatchEvent, WebhookToken models, MediaServerParser port
- adapters: jellyfin + plex parser crates, SQLite + Postgres repos
- application: ingest/confirm/dismiss/cleanup use cases, token mgmt
- presentation: webhook endpoints (bearer + query param auth),
  watch queue + integrations settings HTML pages, OpenAPI docs
- worker: WatchEventCleanupJob (daily, 30d retention)

Movie resolution deferred to confirm — single canonical path
through log_review for enrichment, poster fetch, federation.

crates/adapters/sqlite/src/tests/persons.rs

@@ -1,6 +1,5 @@
 use super::super::persons::SqlitePersonAdapter;
 use domain::{
-    errors::DomainError,
     models::{ExternalPersonId, Person, PersonId},
     ports::{PersonCommand, PersonQuery},
 };