Migrate to per-agent subdirectories, uniform 8-agent support, cross-platform fixes
- All paths use ~/.elydora/{agentId}/ per-agent isolation
- Add copilot, letta plugins; split kiro into kirocli + kiroide
- Remove augment (SDK-only agent, not one-click)
- Fix filepath.Join usage (replace string concatenation)
- Fix stale comment referencing old ~/.elydora/agents/ path
- Uniform 8 agents: claudecode, cursor, gemini, kirocli, kiroide, opencode, copilot, letta
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
ZacharyZhang-NYandClaude Opus 4.6
d80819093a