Add proposal, design, specs and tasks for the fix-timezone-double-conversion
change. Documents the root cause (icsDateToJsDate returning fake UTC causing
double browser offset), the Intl.DateTimeFormat-based solution, and 40+
test scenarios covering DST, cross-timezone, half-hour offsets, and
round-trip conversions.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Replace the old .claude/commands/openspec/ structure with the new
opsx commands and skills system for better spec-driven development
workflow.
- Remove old openspec commands (apply, archive, proposal)
- Add new opsx commands with enhanced capabilities
- Add Claude Code skills for openspec workflows
- Clean up AGENTS.md and CLAUDE.md from openspec instructions
- Remove openspec/AGENTS.md (no longer needed)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add OpenSpec workflow for AI-assisted change proposals
including proposal templates, archive commands, and
project configuration.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
