nats adapter

.env.example

@@ -39,4 +39,11 @@ ALLOW_REGISTRATION=false
 RATE_LIMIT=20
 POSTER_FETCH_TIMEOUT_SECONDS=30
 EVENT_CHANNEL_BUFFER=128
+
+# NATS event bus (optional — falls back to in-memory channel when unset)
+# NATS_URL=nats://localhost:4222
+# NATS_MODE=jetstream           # "jetstream" (default, at-least-once) or "core" (fire-and-forget)
+# NATS_SUBJECT_PREFIX=movies-diary.events
+# NATS_STREAM_NAME=MOVIES_DIARY_EVENTS
+# NATS_CONSUMER_NAME=worker
 RUST_LOG=presentation=debug,tower_http=debug