{
    "title": "product_reviews",
    "type": "object",
    "properties": {
        "id": {
            "type": "integer",
            "description": "Primary key, auto-increment"
        },
        "user_id": {
            "type": "string",
            "description": "User id, system-managed"
        },
        "product_id": {
            "type": "integer",
            "description": "FK to products.id"
        },
        "rating": {
            "type": "integer",
            "description": "Star rating 1-5"
        },
        "title": {
            "type": "string",
            "description": "Review title"
        },
        "comment": {
            "type": "string",
            "description": "Review body"
        },
        "is_approved": {
            "type": "boolean",
            "description": "Admin approval flag"
        }
    },
    "required": [
        "id",
        "user_id",
        "product_id",
        "rating"
    ]
}