feat: remove cjs support, move to esm

[JackDevAU]

This is a major version change

Description:

Migrate from cjs to esm, replace Jest with Vitest, fix SQL injection vulnerabilities, improve type safety, and add comprehensive test coverage.

What was Added/Changed:

Package.json

• Added "type": "module" and exports field for ESM support
• Replaced Jest with Vitest (vitest: ^2.1.0)
• Removed @tinacms/scripts, ts-jest, jest and related dependencies
• Removed sucrase peer dependency
• Added typedoc: ^0.28.15 for documentation generation
• Updated scripts: build now uses tsc directly, test uses vitest run

src/index.ts

• Fixed SQL injection vulnerability by using parameterized queries instead of string interpolation
• Changed _batch to use SQLite transactions with prepared statements
• Changed _put to use INSERT ... ON CONFLICT (upsert) instead of plain INSERT
• Added _close methods to all iterators to properly release resources
• Fixed LIMIT clause to use parameterized binding
• Added UNIQUE constraint on the key column in table creation
• Removed unused client property from iterator classes
• Improved type safety: NextCallback defined locally, params typed as unknown[]

Tests

• Migrated from Jest to Vitest
  • Iterator options (gt, gte, lt, lte, reverse, limit)
  • Read-only mode
  • Clear with options
  • Edge cases (empty strings, special characters, unicode, long values)
  • Upsert behavior verification
  • File-based persistence
  • SQL injection prevention
  • Iterator closing behavior

[changeset-bot]

🦋 Changeset detected

Latest commit: 55ee26c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
sqlite-level	Major

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[CLAassistant]

All committers have signed the CLA.