feat: initial commit - complete website monitoring application

Build a comprehensive website monitoring application with ReasonML, OCaml, and server-reason-react.

Features:
- Real-time website monitoring with HTTP status checks
- Email and webhook alerting system
- Beautiful admin dashboard with Tailwind CSS
- Complete REST API for CRUD operations
- Background monitoring scheduler
- Multi-container Docker setup with 1-core CPU constraint
- PostgreSQL database with Caqti
- Full documentation and setup guides

Tech Stack:
- OCaml 5.0+ with ReasonML
- Dream web framework
- server-reason-react for UI
- PostgreSQL 16 database
- Docker & Docker Compose

Files:
- 9 OCaml source files (1961 LOC)
- 6 documentation files (1603 LOC)
- Complete Docker configuration
- Comprehensive API documentation

💘 Generated with Crush

docker-compose.yml

@@ -0,0 +1,66 @@
+version: '3.9'
+
+services:
+  postgres:
+    image: postgres:16-alpine
+    container_name: website_monitor_db
+    environment:
+      POSTGRES_DB: website_monitor
+      POSTGRES_USER: monitor_user
+      POSTGRES_PASSWORD: ${DB_PASSWORD:-changeme}
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U monitor_user"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    cpus: '1.0'
+
+  redis:
+    image: redis:7-alpine
+    container_name: website_monitor_redis
+    ports:
+      - "6379:6379"
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    cpus: '0.5'
+
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+      target: runtime
+    container_name: website_monitor_app
+    ports:
+      - "8080:8080"
+    environment:
+      - DATABASE_URL=postgresql://monitor_user:${DB_PASSWORD:-changeme}@postgres:5432/website_monitor
+      - DB_HOST=postgres
+      - DB_USER=monitor_user
+      - DB_PASSWORD=${DB_PASSWORD:-changeme}
+      - DB_NAME=website_monitor
+      - REDIS_URL=redis://redis:6379
+      - SMTP_HOST=${SMTP_HOST:-smtp.gmail.com}
+      - SMTP_PORT=${SMTP_PORT:-587}
+      - SMTP_USER=${SMTP_USER}
+      - SMTP_PASSWORD=${SMTP_PASSWORD}
+      - ADMIN_EMAIL=${ADMIN_EMAIL:-admin@example.com}
+      - SECRET_KEY=${SECRET_KEY:-change-this-secret-key-in-production}
+      - ENVIRONMENT=production
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    restart: unless-stopped
+    cpus: '1.0'
+    cpuset: '0'
+
+volumes:
+  postgres_data: