Rebased onto main after #251 restructured commands into skills/.
Applied the same namespace fix to the new skill file locations
(ce-brainstorm, ce-plan, ce-review SKILL.md files).
Short agent names like `repo-research-analyst` are replaced with
fully-qualified `compound-engineering:research:repo-research-analyst`
to ensure correct agent resolution across all plugin targets.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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