Expose typed string enum metadata

[ChiragAgg5k]

Summary

• expose enum names and keys as typed StringSchema properties
• mark enum branches from open string-enum composites with typed open metadata
• keep open-enum shape recognition in CompositeSchema

Tests

• composer lint
• vendor/bin/phpunit tests/Schema/ReaderTest.php
• composer format:check
• composer rector:check

[greptile-apps]

Greptile Summary

The PR exposes typed string-enum metadata and marks recognized open-enum branches with typed open metadata.

• Adds enumName, validated enumKeys, and open properties to StringSchema.
• Preserves open string-enum recognition within CompositeSchema.
• Adds parser and model coverage for metadata validation and branch ordering.

Confidence Score: 5/5

The PR appears safe to merge.

The previously reported enum-key type violation is fixed by validating every x-enum-keys element before assigning it to the typed model, and no blocking failure remains.

Important Files Changed

Filename	Overview
src/Parser/Schema/Reader.php	Parses enum names and validates every enum-key element as a string, fully addressing the prior review finding.
src/Parser/Value.php	Adds list-level string validation with index-specific specification errors.
src/Model/StringSchema.php	Exposes enum name, typed enum keys, and open-enum status on string schemas.
src/Model/CompositeSchema.php	Marks the recognized enum branch as open while preserving all existing StringSchema fields.
tests/Schema/ReaderTest.php	Covers enum metadata propagation, open status, and both branch orders.
tests/ValueTest.php	Verifies valid string lists and rejection of non-string elements.

_{Reviews (2): Last reviewed commit: "fix: validate enum key values" | Re-trigger Greptile}