refactor: merge sqlite adapter family into one crate

README.md

@@ -98,9 +98,8 @@ presentation        — Axum HTTP router, OpenAPI spec assembly, Swagger UI + Sc
 server              — owns the HTTP binary, features (federation, nats), boots presentation's router
 worker              — standalone worker binary (event consumer, poster sync, federation)
 adapters/
-  adapter-common       — shared row-to-domain conversions, sqlx error mapping, date/uuid parsing utils
   auth                 — JWT issuance and validation (Argon2 passwords)
-  sqlite               — SQLite repository + connection factory
+  sqlite               — SQLite repositories, search (FTS5), social graph, durable event queue, connection factory + migrations
   metadata             — TMDB / OMDb HTTP client
   poster-fetcher       — downloads poster images
   object-storage       — stores images (posters + user avatars) on local filesystem or S3-compatible storage
@@ -114,11 +113,9 @@ adapters/
   jellyfin             — Jellyfin webhook payload parser (MediaServerParser adapter)
   plex                 — Plex webhook payload parser (MediaServerParser adapter; requires Plex Pass)
   event-payload        — shared event serialization DTOs (used by all event bus adapters)
-  sqlite-event-queue   — durable polling event queue backed by SQLite
   event-publisher      — in-memory event channel (used in tests)
   nats                 — NATS Core / JetStream event publisher and consumer
   activitypub          — ActivityPub federation adapter (follow, inbox/outbox, actor); delegates to k-ap for protocol internals
-  sqlite-search        — SQLite FTS5 implementation of SearchPort + SearchCommand
   sqlite-federation    — SQLite-backed federation repository
 tui                 — terminal UI client (ratatui); shares api-types with presentation for typed API access
 spa/                — React SPA (TanStack Router + shadcn/ui + Vite); served at /app/ by the backend