feat: array

[anton62k]

Summary by cubic

Add array context tokens and bump the spec to v1.2, enabling formulas to use #index/#length and @prev/@next (with parent/root paths) inside arrays. Updated parser, grammar, types, and docs; switched build to tsdown with .mjs ESM outputs.

• New Features

  • Added array context tokens: #index, #length, and @prev/@next.
  • Supported nested context paths: @parent.x and @root.x.
  • Parser now detects context_token and sets minVersion to 1.2.
  • New types: ArrayLevelContext and ArrayContext.
  • SPEC updated to v1.2 and documented AST utilities.

• Dependencies

  • Replaced tsup with tsdown; renamed config and updated ESLint ignores.
  • ESM outputs now use .mjs; CJS remains .cjs.
  • Updated export type declarations to .d.ts.

^{Written for commit abd3052. Summary will update on new commits. Review in cubic}

[cubic-dev-ai]

No issues found across 15 files

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud