Add deployment notes and patch artifacts

CUSTOM_REDEEM_SUBSCRIPTION.md

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+# Customization: subscription-capable redemption codes
+
+Base upstream commit: 677d02f2
+Local branch: codex/redeem-subscription
+Deployment dir: /root/docker/newapi
+
+What changed
+- Redemption codes support two modes: quota and subscription.
+- Subscription redemption creates user_subscriptions with source=redeem.
+- Admin redemption UI supports selecting a subscription plan.
+- User redemption response distinguishes quota vs subscription.
+
+Suggested future upgrade flow
+1. Pull latest upstream source into a clean clone.
+2. Re-apply the patch file in this folder.
+3. Resolve any merge conflicts in redemption/subscription files.
+4. Rebuild with: docker compose up -d --build new-api
+5. Verify with: curl http://127.0.0.1:3000/api/status
+
+Current compose note
+- This server is currently using source build mode instead of the official image.
+- Original compose backup: docker-compose.yml.bak-20260406094555

docker-compose.remote-test.yml

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+services:
+  new-api:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: new-api-local:test
+    container_name: new-api
+    restart: always
+    command: --log-dir /app/logs
+    env_file:
+      - .env
+    ports:
+      - "${NEWAPI_PORT}:3000"
+    volumes:
+      - /root/docker/newapi/data:/data
+      - /root/docker/newapi/logs:/app/logs
+    environment:
+      - SQL_DSN=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@${POSTGRES_HOST}:${POSTGRES_PORT}/${POSTGRES_DB}
+      - REDIS_CONN_STRING=${REDIS_CONN_STRING}
+      - TZ=${TZ}
+      - ERROR_LOG_ENABLED=${ERROR_LOG_ENABLED}
+      - BATCH_UPDATE_ENABLED=${BATCH_UPDATE_ENABLED}
+    depends_on:
+      - redis
+    healthcheck:
+      test: ["CMD-SHELL", "wget -q -O - http://localhost:3000/api/status | grep -o '\"success\":\\s*true' || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  redis:
+    image: redis:latest
+    container_name: redis
+    restart: always