- Add shared task_runner.run_saved_task helper used by routers/tasks.py and
widgets/sources.py SshTaskWidgetSource.
- Saved tasks now target ssh_tasks service instances via default_service_id;
the legacy default_machine_id and saved_task_runs are removed.
- Actions page lists ssh_tasks services for default and run-time selection.
- Update types, API client, hooks, tests, docs, and changelog.
Backend tests: 222 passed. Frontend lint/build/test: clean (71 passed).
Follow-up #1 to the service-registry change. Jellyfin/Jellyseerr now resolve
from the service registry, so the machine-level app fields are dead config.
- dependencies.py: drop dead _jellyseerr_client_for; simplify _resolve_machine
to SSH-only.
- settings_store.py + routers/settings.py: remove jellyfin_*/jellyseerr_* from
machine default config, get_machine_config, normalization, row mappers, and
MachineInput.
- frontend types + Settings.tsx: drop the fields and the Jellyfin/Jellyseerr
form sections + service options.
- Update frontend test fixtures.
Existing DB rows may still carry these keys in config_json; they are inert and
drop on the next machine save. Verification: backend ruff clean, pytest 222;
frontend lint 0 errors, build success, 70 tests.
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