Release v1.3.1

Release v1.3.1

Maintainer: GitHub Spec Kit baseline, Cursor speckit skills, SPEC-KIT.md.
Fixed: demo make update-deps (SERVICE_PHP) in symfony8 demos.
No consumer-facing API, configuration, or runtime changes.

See docs/CHANGELOG.md for details.

Changelog

Added

• GitHub Spec Kit — baseline spec at specs/001-baseline/, Cursor Agent skills (.cursor/skills/speckit-*), and operator manual SPEC-KIT.md

Changed

• SPEC-DRIVEN-DEVELOPMENT.md — three-layer spec model with Spec Kit baseline and maintainer sync checklist
• Dev dependency lock refresh (phpunit, php-cs-fixer in require-dev only)

Fixed

• Demo make update-deps — define SERVICE_PHP := php in demo/symfony8 and demo/symfony8-tailwind Makefiles (fixes no such service: sh)

Documentation

• README link to SPEC-KIT.md
• UPGRADING.md — upgrade path from 1.3.0

No consumer-facing bundle API, configuration, or runtime changes.

Full Changelog: v1.3.0...v1.3.1