Add strict diagnostic preset

[mattiamanzati]

Summary

• add a strict diagnostic preset that promotes every default-enabled diagnostic to an error
• make metadata the canonical catalog for recommended, strict, and all four category presets
• generate Oxlint presets directly from that catalog and expose the same choices through TypeScript setup
• define recommended as exactly the default-enabled diagnostics, leaving effect-native independently composable

Usage

For Oxlint:

{
  "extends": ["./node_modules/@effect/tsgo/oxlint-presets/strict.json"]
}

For TypeScript setup, select strict interactively or pass --preset strict.

Validation

• pnpm setup-repo
• pnpm lint
• pnpm check
• pnpm test
• package build and preset export assertions
• git diff --check