Prepare for Docker deployment

.env.example

@@ -1,4 +1,3 @@
-# Server (dev only)
 HOST=0.0.0.0
 PORT=8080
 MAX_CONCURRENT=3
@@ -7,7 +6,7 @@ ADMIN_PASSWORD=test123
 TIMEZONE=America/Edmonton
 
 # Public uploader page (optional) — disabled by default
-PUBLIC_UPLOAD_PAGE_ENABLED=TRUE
+PUBLIC_UPLOAD_PAGE_ENABLED=false
 
 # Local dedupe cache (SQLite)
 STATE_DB=./data/state.db
@@ -16,13 +15,14 @@ STATE_DB=./data/state.db
 # e.g., PUBLIC_BASE_URL=https://photos.example.com
 #PUBLIC_BASE_URL=
 
-# Session and security
-SESSION_SECRET=SET-A-STRONG-RANDOM-VALUE
-LOG_LEVEL=DEBUG
+LOG_LEVEL=INFO
 
 # Chunked uploads (to work around 100MB proxy limits)
-# Enable to send files in chunks from browser to this service; the service reassembles and forwards to Immich.
+# Enable to send files in chunks from browser to this service
 # Recommended chunk size for Cloudflare Tunnel is <= 95MB.
 CHUNKED_UPLOADS_ENABLED=false
 CHUNK_SIZE_MB=95
 
+# Custom session secrets
+# By default, a random one is generated
+#SESSION_SECRET=SET-A-STRONG-RANDOM-VALUE