v1.28.1

Fixes

• Refresh .atl/skill-registry.md from Claude Code UserPromptSubmit hooks so deleted registries are recreated on the first user prompt.
• Refresh .atl/skill-registry.md from OpenCode's chat system transform hook, guarded once per plugin process, so OpenCode recreates the registry when a prompt starts.
• Clean up both old SessionStart and new UserPromptSubmit Claude hooks during uninstall.

Verification

• go test ./...
• Manual Claude Code check in prowler: deleted .atl/, sent a prompt, confirmed .atl/skill-registry.md was regenerated.
• Manual OpenCode check in prowler: deleted .atl/, ran a prompt, confirmed .atl/skill-registry.md was regenerated.
• GitHub Actions CI passed on main.

Collaboration

Thanks again to @mata-2p for the original startup-registry push that exposed this follow-up edge case across agent runtimes.