feat: add task-orchestrator skill for multi-agent coordination

[milkomida77]

Summary

• Adds a new task-orchestrator skill to the skills/ directory
• Provides a structured approach to coordinating multiple Claude Code agents
• Covers: task decomposition, conflict detection, agent routing, quality gates, parallel execution
• Follows existing skill format (YAML frontmatter + markdown)

What This Skill Does

When a user needs to manage multi-agent workflows, this skill provides:

• Task pipeline (decompose > check conflicts > route > delegate > verify)
• Task registry pattern for preventing duplicate work
• Quality gate protocol (diff check, tests, secrets scan)
• Error handling table for common failure modes
• Anti-patterns to avoid

Inspired by patterns from running 57 agents in production for 6+ months.

[vercel]

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