holocron 0.2.0

Declarative schema & query compiler — one YAML as the source of truth for SQL schema and a type-checked query catalog.
Documentation 
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# Minimal happy path: one enum, one table.
# Run: cargo run -- samples/minimal.yml

types:
  - name: task_state
    enum: [Open, InProgress, Done]

tables:
  - name: tasks
    columns:
      task_id:    { type: uuid }
      title:      { type: text }
      state:      { type: task_state, default: "'Open'" }
      created_at: { type: timestamptz, default: "now()" }
      archived:   { type: boolean, default: "false" }
      note:       { type: text, null: true }
    primary_key: { columns: [task_id] }
    indexes:
      - { name: idx_tasks_state, columns: [state] }