feat(agent): commands for calling agents

.claude/commands/plan.md

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+Plan implementation approach for the given task using the planner agent.
+
+Follow the Explore → Plan → Implement paradigm. Read relevant files, identify affected modules, choose the simplest approach that aligns with existing patterns. Ask one critical clarifying question if requirements are unclear.
+
+Task: $ARGUMENTS

.claude/commands/refactor.md

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+Identify and remove dead code, consolidate duplicates, and perform cleanup refactoring using the refactor-cleaner agent.
+
+Run vulture and grep to detect unused code. Verify each finding against the safety checklist before removal. Keep diffs minimal and scoped to cleanup only.
+
+Scope: $ARGUMENTS

.claude/commands/review.md

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+Review code changes on the current branch using the code-reviewer agent.
+
+Run `git diff` to see all staged and unstaged changes. If on a feature branch, also run `git diff main...HEAD` to see all branch changes. Begin review immediately following the code-reviewer agent guidelines.
+
+$ARGUMENTS