Update docs content to match current launcher/plugin/runtime structure and fix stale home demo media assets with cache-busted URLs plus poster refresh. Add supporting backlog/subagent tracking records and docs asset regression coverage.
Introduce Discord presence runtime support and continue composition-root decomposition by moving Jellyfin wiring into dedicated composer modules. This keeps main runtime orchestration thinner while preserving behavior and test coverage across config, runtime, and docs updates.
- Document src/main/ composition modules (startup, app-lifecycle, state, etc.)
- Add new services to service layer list (app-ready, mpv-transport, etc.)
- Update flow diagrams to show new composition module structure
- Update contributor notes in development.md
- Add CLI command flag with non-GUI dispatch flow and OSD error handling.
- Add runtime integration call and IPC hook so manual refresh works from command runner without app startup.
- Add public AnkiIntegration manual refresh API with force refresh semantics and guard reuse.
- Preserve default n+1 behavior by fixing config validation for malformed values and adding tests.
