feat: OpenClaw Skill — SKILL.md with orchestration workflow

[OneStepAt4time]

M2.1 — Skill SKILL.md

Parent: #440 (Roadmap)
Milestone: M2 — OpenClaw Skill
Depends on: M1 complete (#441-#445)

Context

An OpenClaw skill is a self-contained package that extends an agent's capabilities. The Aegis skill should let any OpenClaw agent orchestrate Claude Code sessions without knowing the API details.

SKILL.md must include

1. Prerequisites check — Verify Aegis server running, MCP configured
2. Core workflows:
   • Create session → send prompt → wait for idle → read transcript
   • Handle permission prompts (approve/reject decision tree)
   • Stall detection and recovery (nudge → refine → pivot → escalate)
   • Quality gate (tsc + build + test via bash tool)
   • Session cleanup
3. Common patterns:
   • Implement a GitHub issue end-to-end
   • Review a PR
   • Fix a CI failure
   • Batch tasks across multiple sessions
4. Troubleshooting — common errors and fixes
5. Configuration — env vars, auth setup

Acceptance criteria

• Skill is installable via openclaw skill install or manual copy
• An OpenClaw agent with the skill can create and manage CC sessions
• Follows OpenClaw skill spec (concise, appropriate freedom levels)
• Zero npm dependencies (uses MCP server already present)

[OneStepAt4time]

🔧 OpenClaw orchestration skill created — PR #1053 ready for review:

• 331-line skill document covering all acceptance criteria
• Prerequisites check, core workflows, common patterns, troubleshooting
• CI: all checks green ✅

Developed with: Aegis v2.14.0