adding an example file

docker-setup.md

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+#### docker-compose.yaml
+services:
+  jama:
+    image: jama:${JAMA_VERSION:-latest}
+    container_name: ${PROJECT_NAME:-jamachat}
+    restart: unless-stopped
+    ports:
+      - "${PORT:-3000}:3000"
+    environment:
+      - NODE_ENV=production
+      - TZ=${TZ:-UTC}
+      - ADMIN_NAME=${ADMIN_NAME:-Admin User}
+      - ADMIN_EMAIL=${ADMIN_EMAIL:-admin@jama.local}
+      - ADMIN_PASS=${ADMIN_PASS:-Admin@1234}
+      - USER_PASS=${USER_PASS:-user@1234}
+      - ADMPW_RESET=${ADMPW_RESET:-false}
+      - JWT_SECRET=${JWT_SECRET:-changeme_super_secret_jwt_key_2024}
+      - DB_KEY=${DB_KEY}
+      - APP_NAME=${APP_NAME:-jama}
+      - DEFCHAT_NAME=${DEFCHAT_NAME:-General Chat}
+    volumes:
+      - ${PROJECT_NAME}_db:/app/data
+      - ${PROJECT_NAME}t_uploads:/app/uploads
+    healthcheck:
+      test: ["CMD", "wget", "-q", "--spider", "http://localhost:3000/api/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+volumes:
+  ${PROJECT_NAME:-jamachat}_db:
+    driver: local
+  ${PROJECT_NAME:-jamachat}_uploads:
+    driver: local
+
+#### .env file	
+# jama Configuration
+# just another messaging app
+
+# Timezone — must match your host timezone (e.g. America/Toronto, Europe/London, Asia/Tokyo)
+# Run 'timedatectl' on your host to find the correct value
+TZ=UTC
+# Copy this file to .env and customize
+
+# Image version to run (set by build.sh, or use 'latest')
+JAMA_VERSION=0.9.3
+
+# Default admin credentials (used on FIRST RUN only)
+ADMIN_NAME=Admin User
+ADMIN_EMAIL=admin@jama.local
+ADMIN_PASS=Admin@1234
+
+# Default password for bulk-imported users (when no password is set in CSV)
+USER_PASS=user@1234
+
+# Set to true to reset admin password to ADMIN_PASS on every restart
+# WARNING: Leave false in production - shows a warning on login page when true
+ADMPW_RESET=false
+
+# JWT secret - change this to a random string in production!
+JWT_SECRET=changeme_super_secret_jwt_key_change_in_production
+
+# Database encryption key (SQLCipher AES-256)
+# Generate a strong random key: openssl rand -hex 32
+# IMPORTANT: If you are upgrading from an unencrypted install, run the
+# migration script first: node scripts/encrypt-db.js
+# Leave blank to run without encryption (not recommended for production)
+DB_KEY=
+
+# App port (default 3000)
+PORT=3069
+
+# App name (can also be changed in Settings UI)
+
+# Default public group name (created on first run only)
+DEFCHAT_NAME=General Chat
+APP_NAME=jama
+
+PROJECT_NAME=myjamachat