Adds background watcher that tails active log sources and ingests entries
in near-real-time, keeping the DB fresh without manual ingest runs.
- app/watch/watcher.py: Watcher + WatchSource using subprocess + select
loop; flushes every 10s or 100 lines; syncs FTS index every 3 flushes
- patterns/watch.yaml: declarative source config (journald/docker/podman)
- app/rest.py: lifespan context manager starts/stops watcher on app
startup/shutdown; GET /api/watch/status + POST /api/watch/reload
- web/src/views/DashboardView.vue: live/manual indicator chip + stale
banner copy adapts to whether live watching is active
- tests/test_watch_watcher.py: 16 tests covering config load, command
building, docker timestamp stripping, orchestrator lifecycle
Closes#4
