Add executionPolicy ('run-on-change' default | 'bootstrap-only') to ISeeder
and a seedRunner:bootstrapCompleted marker written after the first fully-
successful seeding pass. SeedRunner skips bootstrap-only seeders once the
window closes, replacing DefaultAssistantSeeder's hand-rolled seed-journal
guard; SEED_KEY_PREFIX returns to a private constant and the cross-seeder
name export is removed.
Document the app_state table as internal continuity markers: admission checklist, owner-held DB handle access (no dedicated service today), single-owner keys, scope-prefixed naming, disposability, and a key registry. Reference it from the data system-selection README and the seeding guide.
Replace the ad-hoc seeding system with a journal-based architecture that
tracks seed versions via app_state table and skips unchanged seeds on startup.
- Introduce ISeeder interface with name/version/description/run() contract
- Add SeedRunner orchestrator with journal-based version tracking
- Rename ISeed -> ISeeder, migrate() -> run() (align with industry conventions)
- Rename *Seed -> *Seeder classes, *Seeding.ts -> *Seeder.ts files
- Move seeders into seeding/seeders/ subdirectory for better organization
- Add hashObject utility for auto-computing version from static data sources
- PreferenceSeeder/TranslateLanguageSeeder: auto checksum via hashObject()
- PresetProviderSeeder: lazy getter using RegistryLoader.getProvidersVersion()
- Simplify DbService.onInit() to single SeedRunner.runAll() call
- Add SeedRunner tests and PreferenceSeeder tests
- Add database-seeding-guide.md with version strategy documentation
Signed-off-by: fullex <0xfullex@gmail.com>