refactor: bootstrap crate, thin server/worker binaries

README.md

@@ -91,12 +91,13 @@ Hexagonal (Ports & Adapters) with Domain-Driven Design:
 
 ```
 api-types           — shared REST API request/response DTOs (Serialize/Deserialize + utoipa schemas) + HtmlPageContext; used by presentation, tui, and template adapters
-infra-wiring        — shared infrastructure types (DbPool, EventBusBackend, AppConfig) used by both server and worker binaries
+config              — typed configuration (defaults, config.toml, legacy env names); loaded once by the binaries
+bootstrap           — composition root: the only crate that names adapters; builds the server router and the worker service
 domain              — pure types and CQRS port traits (MovieCommand/MovieQuery, WatchEventCommand/WatchEventQuery, GoalCommand/GoalQuery, DiaryQuery, PersonCommand/PersonQuery, SearchCommand/SearchPort, SocialCommand/SocialQuery, ImageFetcher, RssFeedRenderer), no external deps except serde
 application         — use cases (commands + queries), business logic orchestration; handlers delegate here for all domain logic; modules: auth, diary, goals, import, integrations, movies, person, search, social, users, watchlist, wrapup
 presentation        — Axum HTTP router, OpenAPI spec assembly, Swagger UI + Scalar serving; library crate, no binary of its own
-server              — owns the HTTP binary, features (federation, nats), boots presentation's router
-worker              — standalone worker binary (event consumer, poster sync, federation)
+server              — thin HTTP binary (dotenv, config, bootstrap::build_server, axum::serve); features (federation, nats) forward to bootstrap
+worker              — thin worker binary (bootstrap::build_worker, run until ctrl-c)
 adapters/
   auth                 — JWT issuance and validation (Argon2 passwords)
   sqlite               — SQLite repositories, search (FTS5), social graph, durable event queue, connection factory + migrations