Doc Agent

# @doc-agent/storage SQLite persistence layer for extracted documents using Drizzle ORM. ## Use cases - Store extracted document data locally - Query documents by ID or list all - Track document processing status (pending, indexed, failed) ## Exports - `DocumentRepository` — Main repository class - `storage` — Singleton instance - `createDb(connectionString?)` — Database factory - `getDbPath()` — Default database location - `documents` — Drizzle schema table ## Schema Documents table stores: - `id`, `path`, `hash`, `status`, `data` (JSON), `createdAt` ## Storage location Default: `~/.local/share/doc-agent/doc-agent.db` (via `env-paths`) ## Depends on - `@doc-agent/core` — DocumentData type ## Gotchas - Migrations run lazily on first DB access - Uses better-sqlite3 (synchronous, embedded)