﻿Write a SpacetimeDB backend module in Rust that defines one table and an init reducer that seeds rows on database initialization.

TABLE
- user
  - Struct: User
  - Fields:
    - id: i32 (primary key)
    - name: String
    - age: i32
    - active: bool

REDUCERS
- init: insert exactly these rows on initialization
  - (id=1, name="Alice", age=30, active=true)
  - (id=2, name="Bob",   age=22, active=false)
